Backup sight with compact aperture, centered peep post, and small windage detent

Abstract

A sighting system for a firearm and related methods are disclosed. The sighting system has a front flip-up sight and a rear flip-up sight, wherein the front sight includes a flip-up portion having an aperture through which a sight post can partially extend; a knob including one or more notches on a first side and a sight post extending from a second side; at least one detent arranged to face and interact with the one or more notches. The knob is configured to rotate about a first axis, wherein the rotation causes the sight post to move in a first direction along the first axis; the knob to tilt in a second direction based on the detent coming into contact with the notch; and the sight post to tilt in the second direction, thereby forcing at least a portion of the sight post to press against the aperture, or a combination thereof.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to provisional patent application number 63 / 070,357, filed on August 26, 2020, entitled “A sight with a compact bore, a centered sight post and a small wind deflection stop mechanism,” which has been assigned to the assignee and is expressly incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to backup sights. Specifically, but not in a limiting manner, this disclosure relates to systems, methods, and apparatus for providing a more stable and accurate sight post on the front sight, a more compact bore on the rear sight, and a more compact wind deflector on the rear sight. Background Technology

[0004] Misalignment of the front sight post

[0005] Typically, the front sight post screws directly into the arm or housing it resides in. Furthermore, adjusting the elevation of the sight post usually requires some kind of tool (screwdriver, bullet, specific adjustment tool, etc.). In some instances, the sight post also has a spring-loaded stop to lock it in place and prevent it from shifting. Ideally, the sight post should remain stable and not shift in any direction. However, in existing systems, the misalignment between the sight post and the arm or housing is usually located within the threaded fitting between the sight post and the arm (or housing). In some cases, this misalignment is undesirable, causing the sight post to shift out of alignment due to firearm movement, vibration, etc.

[0006] Back hole misalignment between large and small holes

[0007] Military rear-view sights typically have multiple apertures. For example, a smaller aperture can be used for accuracy, while a larger aperture can be used during low to medium illumination conditions, or a larger aperture can be used to increase speed at close range. Traditionally, rear-view sights on weapons (like the M16) have an L-shaped aperture housing (or “hole”) that rotates 90° to select between two apertures. Because the hole is threadedly attached to a deflector screw (which remains fixed during aperture selection), rotation of the hole causes it to shift laterally a short distance along the thread (i.e., along the horizontal axis passing through the deflector screw). To compensate for this lateral shift, the two apertures are typically offset laterally from each other to maintain a consistent aiming point. In some cases, this lateral shift problem is exacerbated by apertures rotating between 150° and 180° instead of the traditional 90°, resulting in even greater lateral shifts between the apertures. Some of these sights also appear to use a skew design, so that the offset is incorporated without introducing misalignment between the upper and lower apertures. In such cases, both the aperture and the surrounding material are within the user's line of sight. Because aiming functionality and aesthetics are highly correlated, this type of offset (i.e., by tilting, misaligning, and / or causing the aperture to deviate from its center position) can be visually distracting to the user and can encourage firearms to go out of aim or deflect.

[0008] To reduce the retracted size of older L-hole systems in folding backup sights (e.g., 90° rotation between the pinion and the large hole), nested holes (e.g., ARMS#40L) were developed. In nested holes, only the pinion rotates, and the user concentrically views both holes when the pinion is in use. One problem with these nested holes is that some users prefer to first use the sight with the large hole deployed (i.e., greater speed / visibility at the expense of accuracy) and then allow the pinion to be selected. While this approach allows for a nested design, the pinion is susceptible to damage when folded up and flipped.

[0009] Wind deflection stop

[0010] Stop mechanisms often employ separate springs and stops (e.g., ball bearings or stop plungers) to connect with multiple stop recesses or grooves to create a defined position and tactile / audible feedback of such position. In some cases, using such spring and stop mechanisms for windage knobs in pop-out sights is cumbersome.

[0011] Therefore, there is a need for a precision aiming system for both the front and rear sights, which is not only aesthetically pleasing and easy to use, but also compact in size and / or the number of parts used. Summary of the Invention

[0012] The following is a brief overview relating to one or more aspects and / or embodiments disclosed herein. Accordingly, this overview should not be considered a broad overview relating to all contemplated aspects and / or embodiments, nor should it be considered an identification of key or important factors relating to all contemplated aspects and / or embodiments or a depiction of the scope of protection associated with any particular aspect and / or embodiment. Therefore, the sole purpose of this overview is to present, in a simplified form, certain concepts relating to one or more aspects and / or embodiments that are related to the mechanisms disclosed herein, prior to the detailed description presented below.

[0013] Some embodiments of this disclosure can be characterized as a aiming system for a firearm, including a front sight and a rear sight. In some embodiments, the front sight further includes: a first base; a first folding portion, wherein the first folding portion includes two forearms and a horizontal connecting portion connecting the two forearms, wherein the horizontal connecting portion includes a hole; a knob including one or more recesses on a first side of the knob; a sight post extending from a second side of the knob, wherein the shape and size of the sight post are determined to extend at least partially through the hole; at least one stop and one or more protrusions arranged to face one or more recesses, wherein the shape and size of one or more recesses are determined to interact with one or more of the at least one stop and one or more protrusions. In some embodiments, the knob is configured to rotate about a first axis, wherein the rotation causes one or more of the following: movement of the sight post along the first axis in a first direction; tilting of the knob in a second direction, the tilting being at least partially based on at least one stop and one or more of one or more protrusions contacting one or more recesses; and tilting of the sight post in the second direction, wherein the tilting of the sight post in the second direction forces at least a portion of the sight post to press against the hole.

[0014] Other embodiments of this disclosure may also be characterized as a flip-up target sight for use with a firearm, the flip-up target sight being positioned near the distal end of the firearm, the flip-up target sight comprising: a base for attachment to the firearm; a first arm and a second arm positioned on opposite sides of a longitudinal plane passing through the firearm; a horizontal connecting portion for connecting the first arm and the second arm, wherein the horizontal connecting portion includes a first hole having a plurality of angled surfaces; a second hole formed by the first arm, the second arm, and the horizontal connecting portion; and a knob positioned within the second hole. In some embodiments, the knob includes one or more notches on a first side of the knob and a sight post extending from a second side of the knob. In some cases, at least a portion of the sight post extends through the first hole. In some embodiments, the second hole includes at least one stop and one or more protrusions, the shape and size of the at least one stop and one or more protrusions being determined to interact with one or more notches when the knob is rotated. In some cases, the knob is rotatably arranged within the second hole and configured to rotate about a first vertical axis, wherein the rotation causes one or more of the following: the knob is tilted at least partially based on at least one stop contacting one or more notches; and the sight post is tilted in a direction along the longitudinal axis through the firearm, wherein the tilt of the sight post forces the sight post to press against one or more angled surfaces of the first hole.

[0015] Another embodiment of this disclosure can be characterized as a flip-up target sight for use with a firearm, the flip-up target sight being positioned near the proximal end of the firearm, the flip-up target sight comprising: a base for attachment to the firearm; a first arm and a second arm positioned on opposite sides of a longitudinal plane passing through the firearm; a first opening positioned between the first arm and the second arm; and a hole mechanism positioned in the first opening. In some embodiments, the hole mechanism comprises: a first end having a first hole and a second end having a second hole, wherein the first hole is larger than the second hole. In some embodiments, a first vertical axis passes through the center of the first hole. In some embodiments, the first vertical axis also passes through the center of the second hole. In some embodiments, the flip-up target sight further comprises a wind deflector screw passing through the first arm and the second arm; and a wind deflector knob coupled to the wind deflector, the wind deflector knob being disposed on the outer surface of one of the first arm or the second arm. In some embodiments, the wind deflector knob is configured to rotate about a horizontal axis passing through the wind deflector screw. In some embodiments, the hole mechanism is configured to flip or rotate 180 degrees about the horizontal axis when the wind deflector knob is rotated.

[0016] In some embodiments of the aiming system and / or flip-up target sight, each of the sight post and the aperture includes multiple angled surfaces. In some embodiments, tilting of the sight post in a second direction forces one or more angled surfaces of the sight post against one or more angled surfaces of the aperture. In some embodiments, the aperture is a diamond-shaped aperture.

[0017] In some embodiments of the aiming system, the first tilting portion further includes a first opening and a second opening, wherein the first opening and the second opening are arranged between the two arms and separated by a horizontal connecting portion. In some embodiments, an elevation knob is rotatably arranged within the first opening. In some embodiments, the aiming post extends partially through the opening into the second opening.

[0018] In some embodiments of the aiming system, at least one stop is disposed below the knob and near the front or rear end of the first opening. In some embodiments, tilting of the knob and aiming post in a second direction includes forward tilting when at least one stop is disposed near the rear end of the first opening, or backward tilting when at least one stop is disposed near the front end of the first opening, wherein forward tilting or backward tilting is at least partially based on at least one stop pushing the knob upward.

[0019] In some embodiments, one or more notches include at least two notches arranged around the outer circumference of the knob, and wherein adjacent notches of the at least two notches are separated by non-notch portions, wherein the shape and size of the non-notch portions of the knob are determined to pass over and press against at least one stop when the knob is rotated.

[0020] In some embodiments, the hole is a diamond-shaped hole including four corners and one or more circular cuts, with one circular cut at each corner.

[0021] In some embodiments, the sight post includes a rhomboid cross-section. In some embodiments, the aperture includes four angled facets. In some embodiments, tilting the sight post includes biasing the sight post, wherein the biasing is arranged to separate two of the four angled facets of the aperture and to wed the sight post into a central position relative to a plane that includes the barrel axis and is parallel to the barrel axis of the firearm, or to force the sight post to reach the central position relative to a plane that includes the barrel axis and is parallel to the barrel axis of the firearm.

[0022] In some embodiments of the aiming system, a first axis passes through one or more of the center of the knob and the center of the sight post, and a second axis passes through the center of the diamond-shaped aperture. In some embodiments of the aiming system, the first and second axes are tilted relative to each other at least in part based on the tilt of the sight post, the tilt of the knob, or a combination thereof.

[0023] In some embodiments of the aiming system, the rear sight further includes a second base and a second flip-up portion, the second flip-up portion further including: two rear arms; a third opening positioned between the two rear arms; and a hole mechanism, wherein the hole mechanism includes a first end having a first rear hole and a second end having a second rear hole, wherein the first rear hole has a different size from the second rear hole, and wherein the first hole and the second hole are aligned along a first vertical axis.

[0024] In some embodiments of the aiming system, the rear sight further includes a deflector screw passing through each of the two rear arms of the second flip-up portion; and a deflector knob coupled to the deflector screw, wherein the deflector knob is disposed on the outer surface of one of the two rear arms of the second flip-up portion. In some embodiments, the hole mechanism is configured to flip about the deflector screw when the deflector knob is rotated.

[0025] In some embodiments, the aiming system further includes a first tab and a second tab. In some embodiments, the hole mechanism is slidably coupled to the deflector screw via at least one of the first tab and the second tab. In some embodiments, the aiming system further includes a third tab positioned between the first tab and the second tab, wherein the third tab is a threaded tab configured to move laterally along the deflector screw when one or more of the deflector knob and the deflector screw are rotated.

[0026] In some embodiments, rotation of the wind deflector knob further causes one or more of the third tabs to press against the inner edge of one of the first and second tabs; and the hole mechanism to move laterally together with the third tabs.

[0027] In some embodiments, the rear sight includes a second base and a second flip-up portion, the second flip-up portion further including: two rear arms; a third opening positioned between the two rear arms; and a hole mechanism, wherein the hole mechanism includes a first end having a first rear hole and a second end having a second rear hole, wherein the first rear hole has a different size from the second rear hole, and wherein a first vertical axis passes through the center of the first hole and a second vertical axis passes through the center of the second hole, and wherein the first vertical axis is different from the second vertical axis.

[0028] In some embodiments of a flip-up target sight (e.g., positioned near the far end of a firearm), a first vertical axis passes through one or more of the center of the knob and the center of the sight post, and a second vertical axis passes through the center of a first hole, wherein the first and second vertical axes are tilted relative to each other at least in part based on the tilt of the sight post, the tilt of the knob, or a combination thereof.

[0029] In some embodiments of a flip-up target sight (e.g., positioned near the proximal end of a firearm), the flip-up target sight further includes a first tab, a second tab, and a third tab, the third tab being positioned between the first and second tabs, wherein the third tab is configured to move laterally along the deflector screw when one or more of the deflector screw and deflector knob are rotated. In some embodiments, rotation of the deflector knob further causes one or more of the following: the third tab abuts against the inner edge of one of the first and second tabs; and lateral movement of the hole mechanism together with the third tab. Attached Figure Description

[0030] When taken in conjunction with the accompanying drawings, and by referring to the detailed description below and the appended claims, several objects and advantages of this disclosure, as well as a more complete understanding, will become clear and readily apparent:

[0031] Figure 1 This is a perspective view of the front sight of an aiming system in the deployed position according to an embodiment of the present disclosure.

[0032] Figure 2 According to embodiments of this disclosure Figure 1 The front view of the front sight in the image.

[0033] Figure 3 According to embodiments of this disclosure Figure 1 Rear view of the front sight in the image.

[0034] Figure 4 According to embodiments of this disclosure Figure 1 Side view of the front sight in the image.

[0035] Figure 5 According to embodiments of this disclosure Figure 1 Another side view of the front sight in the image.

[0036] Figure 6 According to embodiments of this disclosure Figure 1 A top view of the front sight in the image.

[0037] Figure 7 According to embodiments of this disclosure Figure 1 A bottom view of the front sight in the image.

[0038] Figure 8 This is a perspective view of the front sight of an aiming system in a folded position according to an embodiment of the present disclosure.

[0039] Figure 9 According to embodiments of this disclosure Figure 8 A top view of the front sight in the image.

[0040] Figure 10 According to embodiments of this disclosure Figure 8 A bottom view of the front sight in the image.

[0041] Figure 11 According to embodiments of this disclosure Figure 8 The front view of the front sight in the image.

[0042] Figure 12 According to embodiments of this disclosure Figure 8 Rear view of the front sight in the image.

[0043] Figure 13 According to embodiments of this disclosure Figure 8 Side view of the front sight in the image.

[0044] Figure 14 According to embodiments of this disclosure Figure 8 Another side view of the front sight in the image.

[0045] Figure 15 An embodiment according to this disclosure is shown. Figure 1 A partially exploded view of the flip-up section of the front sight.

[0046] Figure 16A An embodiment according to this disclosure is shown. Figure 1 A detailed rear view of the flip-up section of the front sight.

[0047] Figure 16B An embodiment according to this disclosure is shown. Figure 1 A detailed front view of the flip-up section of the front sight.

[0048] Figure 17 An embodiment according to this disclosure is shown. Figures 16A to 16B A cross-sectional view of the flipped-up portion.

[0049] Figure 18 A perspective view of the rear sight of an aiming system in the deployed position according to an embodiment of the present disclosure is shown.

[0050] Figure 19 An embodiment according to this disclosure is shown. Figure 18 The front view of the rear sight in the image.

[0051] Figure 20A An embodiment according to this disclosure is shown. Figure 18 Detailed perspective view of the hole mechanism of the rear sight.

[0052] Figure 20B A perspective view of a hole mechanism according to an alternative embodiment of the present disclosure is shown, illustrating a tab for coupling the hole mechanism to a deflector screw.

[0053] Figure 20C A perspective view of a threaded tab according to an alternative embodiment of the present disclosure is shown, which is used for the hole mechanism of a laterally moved aiming device.

[0054] Figure 21 An embodiment according to this disclosure is shown. Figure 18 Rear view of the rear sight in the image.

[0055] Figure 22 An embodiment according to this disclosure is shown. Figure 18 Side view of the rear sight in the image.

[0056] Figure 23 An embodiment according to this disclosure is shown. Figure 18 Another side view of the rear sight in the image.

[0057] Figure 24 An embodiment according to this disclosure is shown. Figure 18 A top view of the rear sight in the image.

[0058] Figure 25 An embodiment according to this disclosure is shown. Figure 18 A bottom view of the rear sight in the image.

[0059] Figure 26 A perspective view of the rear sight of an aiming system in a folded position according to an embodiment of the present disclosure is shown.

[0060] Figure 27 An embodiment according to this disclosure is shown. Figure 26 The front view of the rear sight in the image.

[0061] Figure 28 An embodiment according to this disclosure is shown. Figure 26 Rear view of the rear sight in the image.

[0062] Figure 29 An embodiment according to this disclosure is shown. Figure 26 Side view of the rear sight in the image.

[0063] Figure 30 An embodiment according to this disclosure is shown. Figure 26 Another side view of the rear sight in the image.

[0064] Figure 31 An embodiment according to this disclosure is shown. Figure 26 A top view of the rear sight in the image.

[0065] Figure 32 An embodiment according to this disclosure is shown. Figure 26 A bottom view of the rear sight in the image.

[0066] Figure 33 A detailed perspective view of the wind deflection knob and leaf spring of the rear sight according to an embodiment of the present disclosure is shown.

[0067] Figure 34 An embodiment according to this disclosure is shown. Figure 33 Side view of the wind deflector knob and leaf spring.

[0068] Figure 35 Alternative embodiments according to this disclosure are shown. Figure 33 Exploded view of the wind deflector knob and leaf spring. Detailed Implementation

[0069] The term “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. In the detailed description below, reference is made to the accompanying drawings, which form a part therein, and which are illustrated by way of illustration or particular example. These aspects may be combined, other aspects may be utilized, and structural changes may be made without departing from this disclosure. Exemplary aspects may be implemented as methods, systems, or apparatus. Therefore, the detailed description below should not be considered limiting, and the scope of protection of this disclosure is defined by the appended claims and their equivalents.

[0070] For the purposes of this disclosure, and when referring to the intended direction of firing, the terms "front end" and "far end" should refer to the side or direction associated with the intended direction of firing, while the terms "rear," "rear end," or "proximal end" should be associated with the intended support of the firearm. For example, a forward sight (e.g., regarding...) Figure 1 The described sight can be mounted near the far end of the firearm, and then the sight (e.g., regarding...) Figure 18 The described (or similar) device can be mounted near the proximal end of a firearm. For the purposes of this disclosure, the terms "elevation knob" and "knob" are used interchangeably and can refer to a knob (e.g., knob 116) that is rotated within the front sight. Furthermore, throughout this application, the terms "front sight," "front tilt-up sight," "front target sight," "tilt-up target sight," and "front aiming system" are used interchangeably. Similarly, throughout this application, the terms "rear sight," "rear tilt-up sight," "rear target sight," "tilt-up target sight," and "rear aiming system" are used interchangeably.

[0071] Centering of the front sight post

[0072] As previously indicated, given the deviation issues in the art, even where the stop in the elevation knob (or simply the knob) is used to provide tactile feedback to the user, considerable stability is still required in the front sight post. To ensure the front sight post remains centered, this disclosure provides a diamond-shaped hole and a single stop for the front sight post, instead of the two stops seen in some prior art designs, to provide tactile feedback to the user as the elevation knob is rotated. In some cases, this single stop may be located at either the front or rear end of the elevation knob and may cause the elevation knob to tilt in the direction opposite to the direction of the stop. For example, if the stop is located at or near the rear end of the elevation knob, it may cause the elevation knob to tilt forward (pitch down). Similarly, if the stop is located at or near the front end of the elevation knob, it may cause the elevation knob to tilt backward (pitch up). In some cases, this tilting of the elevation knob can also cause the front sight post to tilt (e.g., forward or backward), thus pushing the angled face of the front sight post against the angled face of the rhombus hole and wedging the front sight post into a centered and stable position, thereby absorbing any thread deviation between the knob and the front sight post. It should be noted that in different embodiments, other types of holes besides the rhombus hole are also envisioned (e.g., triangular holes, pentagonal holes, oblique square holes, etc.).

[0073] Figure 1 An example of a front-flip sight 100 of an aiming system according to an embodiment of the present disclosure is shown. In this example, the front-flip sight 100 is in the unfolded position. In some embodiments, the front-flip sight 100 may be configured to be attached near the distal end of a firearm (not shown), for example, on an accessory mounting rail (e.g., a Picatinny rail). As seen, the front-flip sight 100 includes a base 102 and a flip-up portion 104. In some examples, the flip-up portion 104 includes two arms (e.g., a first arm 108, a second arm 110), a horizontal connecting portion 124 connecting the two arms, a first opening 112 between the arms 108, 110, and a second opening 114 between the arms 108, 110. As shown, the horizontal connecting portion 124 arranged between the arms 108, 118 separates the two openings 112, 114. Although not required, in some cases, the two openings 112, 114 may be rectangular openings.

[0074] In some embodiments, the forward-tilting sight 100 includes an elevation knob 116 rotatably disposed within a first opening 112. Furthermore, a sight post 120 may threadedly engage with a threaded hole at or near the center of the elevation knob 116. In the illustrated example, the sight post 120 extends from the top of the elevation knob 116, through a diamond-shaped hole 122 in the horizontal connection 124, and at least partially extends into the second opening 114. In some embodiments, when viewed from above, the sight post 120 may have a diamond-shaped cross-section that matches but is slightly smaller than the diamond-shaped hole 122. Figure 6 Further description. For example, the cross-sectional area of ​​the sight post 120 may be slightly smaller than the cross-sectional area of ​​the rhombus aperture, which allows the sight post 120 to extend at least partially through the rhombus aperture into the second opening 114. In some embodiments, when the elevation knob 116 is rotated, the sight post 120 may move vertically (e.g., up or down) along a vertical axis passing through one or more of the sight post 120 and the elevation knob 116. In some cases, the elevation knob 116 may be configured to rotate about a vertical or substantially vertical axis that also passes through the center of the sight post 120.

[0075] To provide tactile feedback to the user and help hold the sight post 120 at a selected elevation angle, the elevation knob 116 may include a stop 118 disposed at or near the bottom of the first opening 112 and facing the front / distal or rear / proximal end of the raised portion 104. In some embodiments, the elevation knob 116 may further include a plurality of recesses 119, wherein the recesses 119 may be disposed near the bottom of the elevation knob 116. In some cases, the plurality of recesses 119 may be periodically spaced around the outer circumference or bottom edge of the elevation knob 116 and may be shaped to interact with the stop 118 (e.g., if the stop 118 has a triangular shape, the recesses 119 may also have a triangular shape; if the stop 118 has a semi-circular shape, the recesses 119 may also have a semi-circular shape). In some cases, adjacent recesses of the plurality of recesses 119 may be formed by non-recessed portions (e.g., in Figure 15 The notch 119 (shown as non-notched portion 128) is separated from the stop. In some cases, the shape and size of the non-notched portion at or near the bottom of the elevation knob 116 can be determined to extend beyond the stop 118 with minimal or no interaction with the stop. For example, when the elevation knob 116 is rotated, the non-notched portion at the bottom of the elevation knob 116 can extend beyond the stop 118. Furthermore, the shape and size of the notch 119 and the stop 118 can be determined such that even when the notch 119 and the stop 118 are tightly fitted together, the stop 118 can still be pushed slightly upward on the elevation knob 116.

[0076] In some non-limiting examples, opening 112 includes a single stop 118. In such cases, the mutual contact or interaction between the stop 118 and the circumference of the elevation knob 116 can cause the elevation knob 116 to tilt away from the stop 118. In some embodiments, this can be tilting forward when the stop 118 is positioned at or near the rear end of the first opening 112, and tilting backward when the stop 118 is positioned at or near the front end of the first rectangular opening 112. Since the sight post 120 is tightly engaged with the elevation knob 116, tilting of the knob 116 can also cause a corresponding tilting of the sight post 120. Whatever the bevel or clearance between the edge of the sight post 120 and the side of the rhombus hole 122, and any bevel between the thread of the sight post 120 and the elevation knob 116, can be absorbed by this tilting, which forces one or more angled surfaces of the sight post 120 to press against one or more angled surfaces of the rhombus hole 122. For example, if the sight post 120 is tilted in the front / far-end direction, the front angled surface of the sight post 120 can press against the front angled surface of the diamond-shaped hole. Similarly, if the sight post is tilted in the rear / proximal direction, the rear angled surface of the sight post 120 can be forced to press against the rear angled surface of the diamond-shaped hole 122.

[0077] Figure 6 A top or top view of a front-flip sight 100 according to one or more embodiments is shown to provide an alternative view of the tilt of the front sight post. In some cases, the front-flip sight 100 may be similar to or substantially similar to those previously described. Figure 1The described front-flip sight. As seen, the front-flip sight 100 includes a sight post 120, a stop 118, a rhombus aperture 122, an elevation knob 116, and one or more optional cutouts 126 in the rhombus aperture 122. While the manufacturer of this embodiment may attempt to minimize the gap between the outer edge of the sight post 120 and the inner surface of the rhombus aperture 122, in practice, some gap is often present, and this allows for a certain degree of horizontal movement (and misalignment) of the sight post 120. According to several aspects of this disclosure, the stop 118 may be arranged toward the front / far end or rear / proximal end of the elevation knob 116, which can be used to minimize the ability of the sight post 120 to move off-center. In the example shown, the use of a single stop 118 near the rear / proximal end of the elevation knob causes the elevation knob 116 to tilt forward (or to the left) in the figure, which correspondingly causes the sight post 120 to tilt in the same direction. The tilting of the front sight post 120 can push or force one or more angled surfaces of the sight post 120 (e.g., two of the front angled surfaces and two of the rear angled surfaces) against one or more angled surfaces of the rhombus aperture 122 (e.g., two front angled surfaces and two rear angled surfaces), thus minimizing or eliminating any slope or gap between the front sight post 120 and the rhombus aperture 122. Simultaneously, by using the rhombus aperture and / or by applying an offset that separates two of these angled surfaces (e.g., aligning between the front and rear corners of the rhombus aperture 122), the sight post 120 can be wedged or forced into a centered position relative to the barrel axis or longitudinal axis passing through the firearm. In other words, the sight post 120 can be wedged or forced such that a plane passing through (e.g., perpendicular to) the axis passing through the center of the sight post 120 can be parallel to or substantially parallel to a plane passing through the vertical (or barrel) axis of the firearm.

[0078] In some embodiments, the rhombus aperture 122 may include one or more circular cutouts 126 at its corners. For example, the forward-tilting sight 100 shows a circular cutout 126 at each of the four corners of the rhombus aperture 122. In some cases, such as when the sight post 120 is raised or lowered by rotating the elevation knob 116, these cutouts 126 may help reduce friction between the sight post 120 and the rhombus aperture 122. In some aspects, these cutouts 126 may also help to minimize the effect or influence of the corners of the rhombus aperture 122 on the centering of the sight post 120, contrary to the purposes of this disclosure.

[0079] Figures 15 to 17 An alternative view is shown that helps to illustrate the interaction of the stop 118, the notch 119 in the elevation knob 116, the sight post 120, and the diamond-shaped hole 122. Now turn to... Figure 15It shows a partially exploded view of the front-flipping portion 104 (or simply, the flipping portion 104) of the front-flipping sight. The flipping portion 104 can realize the previously mentioned... Figure 1 Or one or more aspects of the folding portion described in any other accompanying drawing described herein. For ease of illustration, the sight post 120 and elevation knob 116 have been moved upward from their use position, thereby allowing for easier visibility of the notch 119 and stop 118. In some cases, the front folding portion 104 includes two openings (e.g., opening 112, opening 114), which may be similar to or substantially similar to the... Figure 1 The openings described. Openings 112 and 114 (which may be examples of rectangular openings) may be spaced apart by a horizontal connecting portion 124, which spans between the arms 108, 110 of the front folding portion 104. In some cases, the elevation knob 116 includes one or more notches 119 on a first side (e.g., distal side, bottom side) and a sight post 120 extending from a second side. For example, the sight post 120 may be screwed directly into the knob through a threaded hole on the second side (e.g., proximal side, upper side) of the knob 116. In the example shown, the sight post 120 includes a threaded portion 1521 for screwing the sight post 120 into the threaded hole 1520 on the second side of the knob 116. In some examples, the threaded hole 1520 may be located at or near the center of the knob. As noted above, the shape and size of the sight post 120 may be determined to extend at least partially through the hole in the horizontal connecting portion 124 (e.g., shown as...). Figure 1 Hole 122 in the middle.

[0080] In some embodiments, the elevation knob 116 may be rotatably disposed in the first opening 112 and the sight post 120 may extend at least partially through the opening into the second opening 114. A stop 118 may be disposed below the elevation knob 116 and near the front end (e.g., distal end) or, alternatively, the rear end (e.g., proximal end) of the first opening 112. In some cases, the first opening 112 may also include one or more optional protrusions located on one or more sides of the stop 118. For example, in the illustrated example, the first opening 112 includes protrusions 136 (e.g., protrusion 136-a, protrusion 136-b) on either side of the stop 118. In some cases, the shape and size of these optional protrusions 136 may be determined to facilitate tilting the elevation knob 116, which can be used to minimize misalignment of the sight post (i.e., by facilitating wedging or forcing the sight post 120 into a centered and stable position), reduce thread deviation between the threaded hole 1522 and the threaded portion 1521, or combinations thereof. In some cases, the shape and size of the notch 119 are determined to interact with at least one stop 118 and one or more protrusions 136. For example, in some cases, tilting of the elevation knob 116 and the sight post 120 may be caused by one or more of the protrusions 136 and the stop 118. In some other cases, the protrusion 136, rather than the stop 118, may primarily cause tilting. In a non-limiting example, the stop 118 may be high enough to hold the elevation knob 116 in a selected position, but not high enough to cause the elevation knob 116 to tilt when the stop 118 engages with one of the notches 119. In such cases, the protrusion 136 may be made high enough to cause the elevation knob 116 and the sight post 120 to tilt (e.g., forward, backward).

[0081] Figure 16A and Figure 16B The previous information was shown separately. Figure 15 The rear and front views of the described front fold-up portion 104.

[0082] Figure 17 A cross-sectional view of the flip-up portion 104 of the front-flipping sight is shown. The front-flipping portion 104 (or simply, the flip-up portion 104) can be similar to or substantially similar to the view about Figure 1 Or the flipped-up portion 104 described in any of the accompanying drawings. Figure 17A cross-sectional view of the flip-up portion 104, viewed from the left, is shown. As can be seen, the flip-up portion 104 includes a stop 118, an elevation knob 116, one or more notches (not visible) on a first side of the knob 116, a sight post 120 on a second side of the knob 116, and a hole 122 (e.g., a diamond-shaped hole) through which the sight post 120 extends at least partially. In some embodiments, the sight post 120 may be screwed into the knob 116, although other fastening methods besides threaded connections are contemplated in different embodiments. In some other cases, the sight post 120 and the knob 116 may be constructed as a single unit. In this example, the stop 118 is arranged toward the rear end (or proximal end) of the flip-up portion 104, i.e., the right side of the page. Furthermore, the shape and size of the stop 118 are determined to contact the bottom surface of the rear end of the elevation knob 116. The contact or interaction between the stop 118 and the bottom surface of the elevation knob 116 can cause the elevation knob 116 to tilt forward (i.e., to the left side of the page), which in turn can cause the sight post 120 to tilt forward as well. Figure 17 A first vertical axis 136 is shown passing through the raised portion 104 (e.g., through the center of the diamond-shaped aperture 122). In some cases, the sight post 120 and the elevation knob 116 can be concentric (i.e., their centers lie on the same axis). As can be seen, Figure 17 A second vertical axis 134, extending upward through the center of the elevation knob 116 and the sight post 120, is also shown. In some cases, the second vertical axis 134 may be at least partially tilted forward by the first vertical axis 136 based on the tilt of the sight post 120, the tilt of the knob 116, or a combination thereof. In some instances, such tilting of the sight post 120 may cause the front end 130 of the sight post 120 to be forced (or squeezed) against the front end 132 of the rhombus hole 122. For example, the front end 130 of the sight post 120 may wedge between the two angled faces at the front end 132 of the rhombus hole 122. Compared to the prior art, this wedging can be used to minimize or even remove lateral movement of the sight post 120 (i.e., entry and exit). Figure 17 The ability to center the sight post 120 (as shown on the page) is enhanced, and this helps to improve the centering of the sight post 120. This diagram can be enlarged to show more clearly the tilt caused by the single stop 118.

[0083] Generally, this disclosure focuses on the rhomboid aperture 122 and the sight post 120 having a rhomboid cross-section (i.e., when viewed from above). However, these shapes are not intended to be limiting. Rather, any corresponding shape that causes the sight post to wedge into a centered position is contemplated in different embodiments. For example, in a non-limiting example, the aperture and sight post may have triangular shapes. In such a case, the apex of these triangles may be arranged opposite to the stop 118, such that the front angle of the triangular sight post 120 pushes into the front angle of the triangular aperture or wedge shape. Alternatively, instead of a rhomboid shape, both the aperture and the sight post may have four curved surfaces, each meeting at an angled corner (e.g., a rhomboid shape with curved surfaces instead of straight surfaces, a hyperellipse, a star shape, etc.). In another example, an oval shape may be used for the aperture 122 and / or the sight post 120. In some other cases, a rhomboid or pentagonal shape may be used for the aperture 122 and / or the sight post 120. It should be noted that the cross-sectional shape of the sight post 120 may be the same as or different from the shape of the aperture 122. For example, in a non-limiting example, the aperture 122 may have an oval shape, wherein its principal (or longer) axis may be parallel or substantially parallel to the longitudinal axis (or barrel axis) through the firearm, and the sight post 120 may have a rhomboid cross-section. As another example, the aperture 122 may be rhomboid and the sight post 120 may have an oval cross-section, wherein its principal axis (i.e., the longer axis) is parallel or substantially parallel to the barrel axis of the firearm.

[0084] Although the accompanying drawings show a stop 118 at the rear end of the raised portion 104 or the first opening 112, the same effective implementation can be achieved by positioning the stop 118 at or near the front end of the raised portion 104 or the first opening 112. Such an arrangement causes the elevation knob 116 and / or the sight post 120 to tilt rearward (or rearward) rather than forward. It should be noted that the centering effect of the sight post 120 between the two rear angled faces of the diamond-shaped hole 122 can be the same (or substantially the same) as when the sight post 120 is wedged between the two front angled faces of the hole 122.

[0085] Figures 2 to 5 and Figure 6 Further explanation and details are provided regarding the centering of the front sight post 120. Figure 2 This illustrates implementations based on one or more methods. Figure 1 Rear view of the forward-flipping sight 100. Figure 3 This illustrates implementations based on one or more methods. Figure 1 Front view of the forward-flipping sight 100. Figure 4 and Figure 5 It depends on one or more implementation methods. Figure 1An alternative side view of the forward-flipping sight 100. Figure 7 A bottom view of a front-flipping sight 100 according to an embodiment of the present disclosure is shown.

[0086] In some embodiments, the forward-flipping sight 100 can be configured to flip between an unfolded position and a folded position. Figures 8 to 14 It shows Figure 1 Multiple views of the forward-flipping sight 100 in the folded position. (See also...) Figure 8 As shown, the front-flipping sight 100 includes a base 802 and a latch 831 (in Figure 9 Also shown are latch 931, guide surface 807, channel 811, mounting screw 813, and hinge pin 809. Base 802 may be similar to or substantially similar to those previously mentioned. Figure 1 The base 102 is described. In some cases, the front-flip sight 100 can be configured to be mounted on an accessory mounting rail (such as a Picatinny rail). The width of the channel 811 or the distance between the opposing guide surfaces 807 (also referred to as rail engagement surfaces) can be varied using a mounting screw 813. In some cases, the user can place the front-flip sight 100 on the accessory mounting rail such that the rail is within the channel 811. The user can then use the mounting screw 813 to tighten or clamp the base 802 onto the rail to secure the front-flip sight 100 in place. In some examples, a hinge pin 809 allows the front-flip portion 104 to be in a folded position (e.g., in...). Figure 8 (in the middle) and unfolding position (e.g., in Figure 1 Pivoting between (in the middle). In some embodiments, the hinge pin 809 may be spring-loaded (e.g., using...). Figure 3 Spring 317 in the middle, using Figure 10 The spring 1017 in the base 802 and the hinge mechanism (i.e., hinge pin 809 and spring 317) can be controlled by a latch 831 provided on the top side of the base 802. The user can press the latch 831 to release the front-flipped portion 104 to the flipped-up (or unfolded) position.

[0087] Figure 9 A top view of the front-flip sight 100 in its folded position is shown, illustrating the latch 931. As shown, the latch 931 can be mounted on top of the base. Pressing the latch 931 allows the flip-up portion 104 of the sight to be unfolded, as described below regarding... Figure 10 Further description.

[0088] Figure 10 A bottom view of the forward-flipping sight 100 in the folded position is shown. As can be seen, the forward-flipping sight 100 includes a spring 1017, which can be engaged with... Figure 3The spring 317 is similar to or substantially similar to the spring 1017. For example, spring 1017 can be used for spring-loaded hinge pins (e.g., in...). Figure 8 (Seen as hinge pin 809), this allows the user to bias the front-flipped portion 104 from the folded position to the unfolded position by clicking a latch (e.g., shown as latch 931). Figure 9 As seen in the diagram, latch 931 may be mounted on the top side of base 102, but other suitable locations may be utilized in different embodiments.

[0089] Figure 11 A front view of a front-flipping sight 100 in its folded position, according to an embodiment of the present disclosure, is shown. Furthermore, Figure 12 A rear view of a front-flipping sight 100 in a folded position according to an embodiment of the present disclosure is shown. Figure 12 Showing previous information Figure 6 The described diamond-shaped hole 122, aiming post 120, and one or more optional cutouts 126. Figure 13 and Figure 14 An alternative side view of a forward-flipping sight 100 in a folded position, according to one or more implementations, is shown. Figure 16A and Figure 16B The following are examples of implementations based on one or more methods. Figure 1 Detailed rear view and detailed front view of the flip-up portion 104 of the front sight.

[0090] Separate the rear sight hole from the wind screw.

[0091] As described above, there is a need for a rear-hinged sight (or simply a rear sight) having multiple apertures (such as pinholes and large apertures). In some instances, the rear sight described in this disclosure can be designed to provide the user with the ability to immediately access the large aperture when the sight is deployed. Additionally or alternatively, the rear sight of this disclosure can be designed to minimize or avoid inaccuracies and / or mitigate problems such as those caused by wind deflection or skewness while switching between apertures, as seen in some current art.

[0092] Several aspects of this disclosure relate to a flat, paddle-shaped hole mechanism comprising a first hole having a first size (e.g., a first diameter) and a second hole having a second size (e.g., a second diameter). In some cases, the first hole size may be larger than the second hole size. The paddle-shaped hole mechanism can be configured to flip (e.g., rotate 180°) to select between a large and a small hole, which can optimize compactness and / or provide the user with the ability to first deploy the sight with either the small or large hole without introducing damage sensitivity. Currently used rear hole mechanisms (e.g., holes of different sizes) are often threaded and produce lateral displacement when switching between holes. As mentioned above, this problem is exacerbated when using a flipped (or rotated 180°) hole mechanism compared to a conventional 90° rotation. In some cases, both the large and small hole openings can be visible simultaneously during use. While some manufacturers have attempted to mitigate the lateral displacement problem by compensating for the top and bottom of the hole (i.e., the hole opening position and / or surrounding material), such sights often appear odd and unsightly. To enhance the aesthetics of the sight and mitigate lateral displacement, a centered threaded nut (or threaded tab, such as...) that contacts the wind deflector screw can be used in the rear sight of this disclosure. Figure 20C The centering threaded nut (2020-c) replaces the flat paddle-shaped hole. In some embodiments, the centering threaded nut does not rotate but moves laterally along the deflector screw, thereby pushing the hole mechanism to the left or right. In some cases, the hole mechanism itself may or may not be threaded. For example, if the hole mechanism is not threaded, it can be configured to rotate about the deflector screw with minimal to no lateral displacement. In such cases, the hole mechanism can be laterally held in place by the centering threaded nut or threaded tab. This design allows the hole to have a single, vertical, symmetrical centerline (e.g., without misalignment or skew), which has enhanced aesthetics and a compact form.

[0093] Figure 18 A perspective view of a rear sight 1800 of an aiming system in the deployed position according to an embodiment of the present disclosure is shown. As can be seen, the rear sight 1800 includes a base 1802, a rear-flipped portion 1804, and a hole mechanism 1812. In some cases, the rear-flipped portion 1804 implements the previously mentioned... Figure 1The described front fold-up portion 104 includes one or more aspects. As seen, the rear fold-up portion 1804 includes a first rear arm 1808 and a second rear arm 1810, and an opening 1806 positioned between the two arms 1808, 1810. A hole mechanism 1812 may be positioned within the opening 1806 and may include a first end having a first hole 1814 and a second end having a second hole 1816. In the example shown, the first hole 1814 has a different size (e.g., larger) than the second hole 1816 and is arranged opposite the second hole on the opposite end of the hole mechanism 1812 (also referred to as the paddle hole 1812).

[0094] In some embodiments, the paddle-shaped orifice or orifice mechanism 1812 can be configured to surround the deflector screw with minimal or no lateral displacement (e.g., as in...). Figure 19 The deflector screw 1922 shown is flipped (or rotated 180°). Flipping or rotating the paddle-shaped orifice 1812 180° allows the user to switch between the large orifice (i.e., the first orifice 1814) and the small orifice (i.e., the second orifice 1816). In some examples, the deflector screw (e.g., Figure 19 The deflector screw 1922 can pass through each of the two arms 1808, 1810 of the rear flip-up portion 1804. Furthermore, the deflector knob 1826 can be coupled to one end of the deflector screw, for example, to the outer surface of one of the two rear arms 1808, 1810. In some embodiments, the hole mechanism 1812 can be configured to flip or pivot about the deflector screw when the user rotates the deflector knob 1826.

[0095] Figures 19 to 21 Further explanations and details are provided regarding overcoming wind-induced misalignment when flipping between the large and small holes.

[0096] Turn now Figure 19 The figure shows a front view of a rear-flip sight 1900 of an aiming system according to an embodiment of the present disclosure. The rear-flip sight 1900 may be similar to or substantially similar to the one described above. Figure 18 The described rear-hinged sight 1800, or any other rear-hinged sight similar to those described herein, is shown. As can be seen, the rear sight 1900 includes two rear arms (e.g., rear arms 1908, rear arms 1910), an opening 1906, a windage knob 1926, a windage screw 1922, and a hole mechanism 1912. In some cases, the hole mechanism 1912 may include two holes, for example, a larger hole 1916 and a smaller hole (not visible but...). Figure 18 (See hole 1814). In addition, two holes of different sizes can be arranged on opposite ends of the hole mechanism 1912.

[0097] In some embodiments, the deflector screw 1922 may pass through each of the two rear arms 1908, 1910 and the hole mechanism 1912 of the rear flip-up portion. Further, the deflector knob 1926 may be coupled to the deflector screw 1922 and may be arranged on the outer surface of one of the two rear arms (e.g., rear arm 1908) of the rear flip-up portion. In some cases, the hole mechanism 1912 may be configured to flip or rotate 180 degrees about the deflector screw 1922 when the deflector knob 1926 is rotated. To mitigate lateral displacement, the rear flip-up portion includes an opening positioned between the two arms (e.g., as shown in the image). Figure 18 The diagram shows one or more tabs (e.g., first tab 1920-a, second tab 1920-b, third tab 1920-c) within the opening 1806. In some cases, one or more tabs (e.g., tab 1920-c) may be threaded tabs. Although not mandatory, in some cases, threaded tabs (e.g., tab 1920-c) may be positioned between the first non-threaded tab and the second non-threaded tabs 1920-a, 1920-b. The threaded tabs may be configured to move laterally along the deflector screw 1922 when one or more of the deflector knob 1926 and the deflector screw 1922 are rotated. Additionally or alternatively, the hole mechanism 1912 may be slidably coupled to the deflector screw 1922 via at least one of the first tabs 1920-a and the second tab 1920-b. For example, when the deflector knob 1926 is rotated, the deflector screw 1922 can also rotate, and the threaded tab 1920-c can move laterally along the deflector screw 1922. Further, the paddle-shaped bore 1912 can be slidably coupled to the deflector screw 1922 via two tabs 1920 (e.g., first tab 1920-a, second tab 1920-b), each tab 1920 having a non-threaded bore thereon, the shape and size of which are determined to allow the deflector screw 1922 to pass through the non-threaded bore mechanism 1912. In some embodiments, the two tabs 1920 can be spaced apart to allow the threaded tab 1920-c to rest between them. In some cases, when the threaded tab 1920-c moves laterally, it pushes against the inner edge of one of the other two tabs 1920 (i.e., tabs 1920-a and 1920-b), causing the paddle-shaped bore 1912 to move laterally together with the threaded tab 1920-c. In this way, rotation of the wind deflector knob 1926 causes lateral movement of the paddle-shaped bore or bore mechanism 1912 without undesirable displacement when it is flipped. In some cases, this design also allows the first and second bores of the bore mechanism to be aligned along the same vertical axis, which may be less distracting and / or more aesthetically pleasing to some users.

[0098] In some cases, the tab 1920 of the rear-hinged sight 1900 may also include one or more notches (e.g., notch 1954 of the third tab 1920-c). Furthermore, the rear-hinged sight 1900 may also include an upwardly biased stop 1921 (in... Figure 33 The stop portion 3310 is also shown in the diagram. In some embodiments, the notch 1954 at or near the bottom of the tab 1920-c intersects with the top edge of the stop portion 1921 (e.g., at the bottom of the tab 1920-c). Figure 33 The mutual contact between the top edges (shown as 3356) can help guide the lateral movement of the threaded tabs 1920-c along the deflector screw 1922, as described below. Figure 33 Further description.

[0099] Figure 20A A detailed perspective view of a rear-flip-up portion 2004 according to an embodiment of the present disclosure is shown. In some cases, the rear-flip-up portion 2004 may be implemented. Figure 19 The rear sight 1900 comprises one or more aspects of a rear-hinged portion 1904. As seen, the rear-hinged portion 2004 includes two rear arms 2008, 2010 having an opening 2006 between them. Further, a hole mechanism 2012 (also referred to as a paddle hole 2012) and a plurality of tabs 2020 (e.g., tabs 2020-a and 2020-b, which may be non-threaded tabs; tabs 2020-c, which may be threaded tabs or center-threaded nuts) are positioned in the opening 2006 between the two rear arms. In some embodiments, the threaded tab 2020-c may be positioned between the two non-threaded tabs 2020-a and 2020-b. Figure 20AA wind deflector knob 2026 and a wind deflector screw 2022 are also shown on the outer surface of the rear arm 2008. The wind deflector screw 2022 passes through each of the two rear arms 2008, 2010 and is coupled to the wind deflector knob 2026. In some embodiments, the hole mechanism 2012 is configured to pivot or flip (e.g., rotate 180 degrees) about the wind deflector screw 2022 when the wind deflector knob is rotated. In some cases, the hole mechanism 2012 is slidably coupled to the wind deflector screw 2022 via at least one of the first tab 2020-a and the second tab 2020-b. In addition to hole symmetry (e.g., the small hole 2014 and the large hole 2016 are aligned along the same vertical axis), the hole mechanism 2012 may also be designed to be symmetrical in its weight distribution. For example, in some embodiments, the first tab 2020-a and the second tab 2020-b extend from the same face of the hole mechanism 2012. In a non-limiting example, tabs 2020-a and 2020-b extend from the distal end face of the bore mechanism 2012 (i.e., the side or direction associated with the firing direction). Furthermore, tabs 2020-a and 2020-b may be positioned at opposite ends of the bore mechanism (e.g., at...). Figure 20B The portion shown is the middle or approximately the middle between ends 2037-a and 2037-b. In other words, the opening in each of the tabs 2020-a and 2020-b (e.g., Figure 20B The center of the opening 2041 in the hole mechanism can be in the middle or approximately in the middle between the two ends 2037 of the hole mechanism.

[0100] Alternatively or alternatively, such as Figure 20B and Figure 20C As seen, the hole mechanism 2012 can be structurally integrated with the first tab 2020-a and the second tab 2020-b (e.g., non-threaded tab), while the tab 2020-c (e.g., threaded tab) can be a separate part. Figure 20B A detailed view of a hole mechanism 2012 is shown, which includes a first end 2037-a having a hole 2016 (e.g., a smaller hole) and a second end 2037-b having a hole 2014 (e.g., a larger hole). In some cases, the hole mechanism 2012 may further include non-threaded tabs 2020-a and 2020-b, each of which has a shape and size determined to allow wind deflection of the screw (e.g., in...). Figure 20A The diagram shows a non-threaded opening 2041 through which the deflector screw (2022) passes. As can be seen, the first non-threaded protrusion 2020-a and the second non-threaded protrusion 2020-b can be integrally formed with the hole mechanism 2012, and the hole mechanism can be slidably coupled to the deflector screw.

[0101] Figure 20CA detailed view of the threaded tab 2020-c of the rear-flipped portion is shown. As can be seen, the threaded tab 2020-c includes a threaded opening 2042, wherein the shape and size of the threaded opening 2042 are determined to receive the deflector screw. In some cases, the threaded tab 2020-c may be shaped and sized to fit between the opening of the first non-threaded tab 2020-a and the second non-threaded tab 2020-b (e.g., in...). Figure 20B This is shown as opening 2043. In this case, the threaded opening 2042 of tab 2020-c can be aligned with the non-threaded opening 2041 of each of tabs 2020-a and 2020-b, allowing the deflector screw to pass through tab 2020. In some embodiments, the radius of opening 2042 may be the same as or approximately the same as the radius of opening 2041.

[0102] Figure 21 A rear view of a flip-up sight 2100 of an aiming system according to an embodiment of the present disclosure is shown. In some cases, the flip-up sight 2100 (or simply, the rear sight 2100) may be similar to or substantially similar to those previously described respectively. Figure 18 , Figure 19 and / or Figures 20A to 20C The rear sights 1800, 1900, and / or 2000 are described. As described above, they have threaded tabs (e.g., in...). Figure 20A and Figure 20C Lateral movement of the hole mechanism (such as hole mechanism 2112) shown as threaded tab 2020-c can be used to counteract lateral displacement introduced by rotation of the wind deflector knob 2126 and / or wind deflector screw 2122. Therefore, as Figure 21 As seen in the image, this means that the small hole 2116 and the large hole 2114 can be aligned along the same vertical axis 2124, and no offset or misalignment in the paddle hole 2112 is required between the small hole 2116 and the large hole 2114. For example, positioning the first non-threaded tab and the second non-threaded tab (e.g., Figure 20B The threaded joints between the joints 2020-a and 2020-b in the middle (e.g., Figure 20C The contact piece 2020-c in the middle can be configured to move laterally along the deflector screw 2122 when one or more of the deflector knob 2126 and the deflector screw 2122 are rotated. In such a case, rotation of the deflector knob 2126 can further cause one or more of the following: the threaded contact piece abuts against the first non-threaded contact piece (e.g., Figure 20B The second non-threaded connector (e.g., 2020-a) is a connector in the middle. Figure 20BThe inner edge of one of the tabs 2020-b); and the lateral movement of the hole mechanism or paddle-shaped hole 2112 together with the threaded tab. Currently used flip-up sights with pinholes and large holes typically utilize the offset between the pinholes and large holes to compensate for the lateral displacement of the hole mechanism along the deflector screw when the deflector knob is rotated. However, by utilizing a threaded tab that rotates in the same direction as the deflector screw, the lateral displacement of the hole mechanism (e.g., in the right direction) can be compensated by the same or similar lateral displacement by laterally moving the hole mechanism in the opposite direction (e.g., in the left direction). In this way, for example, after flipping between the large and pinholes, the rear-flip sight of this disclosure allows the user to maintain a consistent aiming point, even though the holes are aligned along the same vertical axis 2124.

[0103] like Figure 21 As shown, the rear-hinged sight 2100 further includes a base 2602, guide surfaces 2107 (e.g., guide surfaces 2107-a, guide surfaces 2107-b), a channel 2111, and an actuator (e.g., in...). Figure 26 The actuator 2613 shown in the figure), and the hinge pin (e.g., in Figure 26 (Hinge pin 2609 shown). Base 2602 may be similar to or substantially similar to the previously mentioned... Figure 18 The base 1802 is described. In some cases, the rear-hinged sight 2100 can be configured to be mounted on an accessory mounting rail (such as a Picatinny rail). The width of the channel 2111 or the distance between the opposing guide surfaces 2107 (also referred to as rail engagement surfaces) can be varied using an actuator. In some cases, the user can place the rear-hinged sight 2100 on an accessory mounting rail such that the rail is within the channel 2111 (e.g., surrounded by the channel 2111 on three sides). The user can then use the actuator to screw or clamp the base 2102 onto the rail to secure the rear-hinged sight 2100 in place. In some examples, a hinge pin can allow the rear-hinged portion 2104 to be in a folded position (e.g., Figure 26 (in the middle) and the unfolded position (e.g., Figure 18 Pivoting between (in the middle). In some embodiments, the hinge pin may be spring-loaded (e.g., using spring 2117, using...). Figure 32 The spring 3217 in the spring, and the hinge mechanism (e.g., hinge pin 2609 and spring 3217) can use a tab (e.g., such as) provided on one side of the rear-hinged sight 2100. Figure 10 The flap 1027 shown in the figure is used for control. The user can press the flap to bias the rear flip-up portion 2104 to the flip-up (or unfolded) position.

[0104] Figure 22A side view of a rear-flip sight 2200 of an aiming system according to an embodiment of the present disclosure is shown. The rear-flip sight 2200 can be used with previously disclosed... Figures 18 to 21 The described rear-flip sights 1800, 1900, 2000 and / or 2100 are similar or substantially similar. Figure 23 Another side view of a rear-flip-out sight 2200 according to an implementation example of this disclosure is shown.

[0105] Figure 24 A top view of a rear-flip sight 2400 of an aiming system according to an embodiment of the present disclosure is shown. The rear-flip sight 2400 can be used with previously disclosed... Figures 18 to 21 The described rear-flip sights 1800, 1900, 2000 and / or 2100 are similar or substantially similar.

[0106] Figure 25 A bottom view of a rear-flip sight 2500 of an aiming system according to an embodiment of the present disclosure is shown. The rear-flip sight 2500 can be used with previously disclosed... Figures 18 to 21 The described rear-flip sights 1800, 1900, 2000 and / or 2100 are similar or substantially similar.

[0107] Figure 26 A perspective view of a rear-flip-out sight 2600 of an aiming system according to an embodiment of the present disclosure in a folded position is shown. Similar to the previously described front-flip-out sight, the rear sight or rear-flip-out sight 2600 can be configured to flip between an unfolded position and a folded position. Figures 26 to 32 Several views of the rear-hinged sight in the folded position are shown. The rear-hinged sight 2600 may be similar to or substantially similar to the one described above. Figure 18 The described rear-flip sight 1800. (As shown) Figure 26 and Figure 27 As shown, the rear-hinged sight 2600 includes a base 2602, a guide surface 2607, a channel 2611, a mounting screw 2613, a latch 2631 (also referred to as an unfolding lever 2631), and a hinge pin 2609. The base 2602 may be similar to or substantially similar to those previously described. Figure 18The base 1802 is described. In some cases, the rear-hinged sight 2600 can be configured to be mounted on an accessory mounting rail (such as a Picatinny rail). The width of the channel 2611 or the distance between the opposing guide surfaces 2607 (also referred to as rail engagement surfaces) can be varied using an actuator 2613. In some cases, the user can place the rear-hinged sight 2600 on the accessory mounting rail such that the rail is within the channel 2611. The user can then use the actuator 2613 to screw or clamp the base 2602 onto the rail to secure the rear-hinged sight 2600 in place. In some examples, a hinge pin 2609 allows the rear-hinged portion 2604 to be in a folded position (e.g., Figure 26 (in the middle) and the unfolded position (e.g., Figure 18 Pivoting between (in the middle). In some embodiments, the hinge pin 2609 may be spring-loaded (e.g., using...). Figure 21 Spring 2117 in the middle, using Figure 32 The spring 3217 in the hinge mechanism (i.e., hinge pin 2609 and spring 3217) can be controlled using a latch (or another suitable tool) provided on the top side of the base 2602 of the rear-hinged sight 2600. The user can press the latch 2631 to open the rear-hinged portion (e.g., as shown in the image). Figure 21 The rear-flipped portion 2104 shown is biased to the flipped-up (or unfolded) position. In some cases, the latch 2631 may be respectively with respect to... Figure 8 and / or Figure 9 The described latches 831 and / or 931 are similar or substantially similar. It should be noted that in different embodiments, other suitable tools besides latches, such as buttons, levers, sliders, etc., may be used.

[0108] Figure 27 A front view of a rear-flip sight 2600 in a folded position according to an embodiment of the present disclosure is shown. In some cases, the rear-flip sight 2600 may be similar to or substantially similar to those previously described respectively. Figures 18 to 21 and / or Figure 26 The described rear-flip sights are 1800, 1900, 2000, 2100 and / or 2600. Figure 28 A rear view of a flip-up sight 2800 according to an embodiment of the present disclosure is shown. In some cases, the flip-up sight 2800 may be similar to or substantially similar to those previously described respectively. Figures 18 to 21 and / or Figure 26 The described rear-flip sights are 1800, 1900, 2000, 2100 and / or 2600.

[0109] Figure 29A side view of a rear-flip sight 2900 of a aiming system in a folded position according to an embodiment of the present disclosure is shown. The rear-flip sight 2900 may be similar to or substantially similar to those previously described respectively. Figures 18 to 21 and / or Figure 26 The described rear-flip sights are 1800, 1900, 2000, 2100 and / or 2600. Figure 30 Another side view of a rear-flip-up sight 2900 according to an embodiment of the present disclosure is shown.

[0110] Figure 31 A top view of a rear-flip sight 3100 of an aiming system according to an embodiment of the present disclosure is shown. The rear-flip sight 3100 may be similar to or substantially similar to those previously described. Figures 18 to 21 and / or Figure 26 The described rear-flip sights are 1800, 1900, 2000, 2100 and / or 2600.

[0111] Figure 32 A bottom view of a rear-hinged sight 3200 according to an embodiment of the present disclosure is shown, illustrating a spring 3217. In some cases, the spring 3217 may facilitate flipping the rear sight 3200 from a folded position to an unfolded position and vice versa. The spring 3217 may be similar to or substantially similar to the spring described above. Figure 21 The spring 2117 is described. Furthermore, the flip-up sight 3200 may be similar to or substantially similar to those previously described. Figures 18 to 21 , Figure 26 and / or Figure 31 The described rear-hinged sights are 1800, 1900, 2000, 2100, 2600 and / or 3100.

[0112] Compact wind deflector

[0113] As mentioned above, there is also a need in the art for a more compact windage adjustment knob, given the volume occupied by separate springs and stops. In some embodiments, this disclosure uses an annular leaf spring with a built-in stop, configured to function as both a spring and a stop, which optimizes the lateral dimensions of the windage knob and / or reduces the number of individual parts required for assembling a flip-up sight.

[0114] Figure 33A rear-hinged sight 3300 according to an embodiment of the present disclosure is shown, illustrating details of the wind deflection stop mechanism. As can be seen, the rear-hinged sight 3300 includes a bore mechanism 3312 (also referred to as a paddle bore 3312) and a wind deflection stop mechanism 3350, which includes a wind deflection knob 3326, a wind deflection screw 3322, and a circular leaf spring 3306 (also referred to as a leaf spring 3306). It should be noted that in different embodiments, other types of leaf springs besides circular leaf springs may be used, and the use or reference to circular leaf springs is not intended to be limiting. In some embodiments, the circular leaf spring 3306 may be configured to provide tactile feedback to the user, for example, when the wind deflection knob 3326 is rotated. Additionally or alternatively, the leaf spring 3306 may help keep the wind deflection knob 3326 locked in one or more predetermined positions. In some cases, the circular leaf spring 3306 may also help generate pressure to prevent or minimize lateral displacement of the wind deflection screw 3322. In some embodiments, the wind deflector knob 3326 may include a plurality of notches 3346 that may be equidistantly spaced along (or near) the perimeter of the wind deflector knob 3326, for example, on the inward-facing surface of the tab 3320. As will be understood, the spacing of these notches 3346 may vary depending on the desired spacing size for wind deflection selection. In some cases, the wind deflector knob 3326 may be coupled to the wind deflection screw 3322 via a pin 3352 (or any other suitable coupling device) such that rotation of the wind deflector knob 3326 causes a corresponding rotation of the wind deflection screw 3322, and thus causes lateral movement of the bore mechanism or paddle-shaped bore 3312.

[0115] In some cases, the radius of the circular leaf spring 3306 may be smaller than the outer radius of the wind deflector knob 302. Alternatively or additionally, the circular leaf spring 3306 may include one or more angled stops 3309 along its outer perimeter. The angled stops 3309 may be formed to engage or fit into a notch 3346, and may be used to provide tactile feedback to the user as the wind deflector knob 3326 is rotated and / or to hold the wind deflector knob 3326 in a selected position. In some embodiments, the circular leaf spring 3306 may be formed of a thin, flexible material, such as a sheet of metal (e.g., steel, aluminum, stainless steel, etc.) or any other suitable material. Furthermore, the thickness of the circular leaf spring 3306 can be selected such that one or more angled stops 3309 can be pushed inward and parallel (or substantially parallel) to the longitudinal axis of the deflector screw 3322 when not aligned with one of the notches 3346, which can be used to generate an outward biasing force on one or more angled stops 3309.

[0116] Turn now Figure 35This shows an exploded view of a wind deflection stop mechanism 3500 of a rear-hinged sight according to an embodiment of the present disclosure. The wind deflection stop mechanism 3500 is comparable to that previously referenced... Figure 33 The described wind deflection stop mechanism 3350 is similar to or substantially similar to the wind deflection stop mechanism 3500. As seen, the wind deflection stop mechanism 3500 includes a wind deflection knob 3526, a wind deflection screw 3522, a pin 3552 for coupling the wind deflection screw 3522 to the wind deflection knob 3526, and a leaf spring 3506. The leaf spring 3506 may be similar to the previously referenced... Figure 33 The described circular leaf spring 3306 is similar or substantially similar and may include one or more angled stops 3509 and / or holes 3525 (e.g., holes 3525-a, holes 3525-b) along its outer perimeter. In some embodiments, the arm of the flip-up sight (e.g., the rear arm 3508) may include a circular boss 3532 having a radius slightly larger than the radius of the windshield knob 3526. The circular boss 3532 may include concentric recesses 3534 for receiving the leaf spring 3506. In some embodiments, the circular boss 3532 may also include one or more protrusions 3524 (e.g., protrusions 3524-a, protrusions 3524-b), wherein the shape and size of the one or more protrusions 3524 may be determined to match one or more holes 3525 in the leaf spring 306. In some cases, the mutual contact between one or more protrusions 3524 and holes 325 can help minimize or prevent rotation of the leaf spring 3506 within the circular boss 3532. In the example shown, the protrusions 3524 and holes 3525 are rectangular, but other shapes, such as squares, triangles or wedges, trapezoids, etc., can be implemented in different embodiments. In some aspects, the use of leaf springs 3506 (such as circular leaf springs) with built-in angular stops 3509 can allow for a more compact wind deflection stop assembly than conventional spherical stop mechanisms are seen.

[0117] Aperture flipping stop

[0118] Figure 33 and Figure 34 Details of the wind deflection knob 3326 and leaf spring 3306 of the rear-hinged sight according to an embodiment of the present disclosure are shown. Figure 33As shown, the rear-hinged sight 3300 includes a vertical biasing stop 3310 disposed below tabs 3320 (e.g., threaded tabs 3320-c and non-threaded tabs 3320-a and 3320-b). In some cases, the stop 3310 may extend vertically and laterally in the plane containing the deflector screw 3322. Furthermore, the stop 3310 may be configured to bias upwards via one or more biasing components (such as a coil spring 3330). In some cases, the coil spring 3330 may be configured to bias the top edge 3356 of the stop 3310 into a recess 3354 (e.g., recess 3354-a) in tabs 3320-a and 3320-b and / or into a recess (not visible) in the threaded tab 3320-c. The contact between the notch at or near the bottom of the threaded tab 3320-c and the top edge 3356 of the stop 3310 can help guide the threaded tab 3320-c to move laterally along the deflector screw 3322. In some instances, the contact between the notch in the tab 3320 and the top edge 3356 of the stop 3310 can also help provide tactile feedback to the user when the hole mechanism or paddle hole 3312 is flipped. Additionally or alternatively, the contact between the notch in one or more tabs 3320 (e.g., tabs 3320-a, 3320-b, 3320-c) and the top edge of the stop can also help hold the paddle hole 3312 in one of two preferred positions (i.e., when either the small or large hole is selected, in which case the vertical axis through the small and large holes is perpendicular or substantially perpendicular to the longitudinal axis through the firearm). In some instances, one or more of the tabs (e.g., tabs 3320-a, 3320-b) may also include one or more opposing notches 3354 (e.g., notches 3354-b, 3354-c) configured to interact with the top edge 3356 of the stop 3310. In a non-limiting example, the biased stop 3310 may be pushed downward and against a biasing member (e.g., a coil spring 3330), thereby releasing the top edge 3356 of the stop 3310 from the notch 3354-a currently in contact with the stop 3310. In such a case, the paddle hole 3312 is free to flip (or rotate) until the opposing notches (e.g., notches 3354-b, 3354-c) engage the biased stop 3310.

[0119] As used herein, the phrase "at least one of A, B, and C" is intended to mean "A, B, C, or any combination of A, B, and C." The prior description of the disclosed embodiments is provided to enable those skilled in the art to make or use this disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope of protection consistent with the principles and novel features disclosed herein.

Claims

1. A sighting system for a firearm, comprising: a front sight; a rear sight; wherein the front sight further comprises: a first base; a first flip-up portion comprising two front arms and a horizontal connection connecting the two front arms, wherein the horizontal connection comprises an aperture; a knob comprising one or more notches on a first side of the knob; a sight post extending from a second side of the knob, wherein the sight post is shaped and sized to extend at least partially through the aperture; at least one detent and one or more protrusions arranged to face the one or more notches, and wherein the one or more notches are shaped and sized to interact with one or more of the at least one detent and the one or more protrusions; wherein the knob is configured to rotate about a first axis, the rotation causing one or more of: movement of the sight post in a first direction along the first axis; tilting of the knob in a second direction, the tilting based at least in part on the one or more of the at least one detent and the one or more protrusions in contact with the one or more notches; and tilting of the sight post in the second direction, wherein the tilting of the sight post in the second direction forces at least a portion of the sight post to press against the aperture.

2. The sighting system of claim 1, wherein, each of the sight post and the aperture comprises a plurality of angled faces, and wherein the tilting of the sight post in the second direction forces one or more angled faces of the sight post to press against one or more angled faces of the aperture.

3. The sighting system of claim 1, wherein, the aperture is a diamond-shaped aperture.

4. The sighting system of claim 1, wherein, the first flip-up portion further comprises: a first opening and a second opening, wherein the first opening and the second opening are arranged between the two arms and are separated by the horizontal connection, wherein the knob is rotatably arranged within the first opening, and wherein the sight post extends partially through the aperture into the second opening.

5. The sighting system of claim 4, wherein, the at least one detent is arranged below the knob and near a front end or a rear end of the first opening, and wherein the tilting of the knob and the sight post in the second direction comprises: a forward tilt when the at least one detent is arranged near the rear end of the first opening, or a rearward tilt when the at least one detent is arranged near the front end of the first opening, wherein the forward tilt or the rearward tilt is based at least in part on the at least one detent pushing the knob upward.

6. The sighting system of claim 5, wherein, the one or more notches comprise at least two notches arranged around an outer circumference of the knob, and wherein adjacent ones of the at least two notches are separated by a non-notch portion, wherein the non-notch portion of the knob is shaped and sized to pass over and press against the at least one detent as the knob rotates.

7. The sighting system of claim 1, wherein, The aperture is a lozenge-shaped aperture including four corners and one or more circular cutouts, each corner having one circular cutout.

8. The sighting system of claim 7, wherein, The sight post includes a lozenge-shaped cross-section, and wherein the aperture includes four angled faces, and wherein the cant of the sight post includes: biasing the sight post, wherein the biasing is arranged to separate two of the four angled faces of the aperture, and wedge the sight post into a central position relative to a plane that includes a barrel axis and is parallel to the barrel axis of the firearm, or force the sight post to the central position relative to a plane that includes a barrel axis and is parallel to the barrel axis of the firearm.

9. The sighting system of claim 3, wherein, The first axis passes through one or more of a center of the knob and a center of the sight post, and wherein a second axis passes through a center of the lozenge-shaped aperture.

10. The sighting system of claim 9, wherein, The first axis and the second axis are canted relative to each other based at least in part on a cant of the sight post, a cant of the knob, or a combination thereof.

11. The sighting system of claim 1, wherein, The rear sight includes a second base and a second flip-up portion, the second flip-up portion further including: two rear arms; a third opening between the two rear arms; and an aperture mechanism, wherein the aperture mechanism includes a first end having a first rear aperture and a second end having a second rear aperture, wherein the first rear aperture has a different size than the second rear aperture, and wherein the first rear aperture and the second rear aperture are aligned along a first vertical axis.

12. The sighting system of claim 11, further comprising: a drift screw passing through each of the two rear arms of the second flip-up portion; a drift knob coupled to the drift screw, wherein the drift knob is arranged on an outer surface of one of the two rear arms of the second flip-up portion; and wherein the aperture mechanism is configured to flip around the drift screw when the drift knob is rotated.

13. The sighting system of claim 12, further comprising: a first tab and a second tab, and wherein the aperture mechanism is slidingly coupled to the drift screw through at least one of the first tab and the second tab.

14. The sighting system of claim 13, further comprising: a third tab positioned between the first tab and the second tab, wherein the third tab is a threaded tab configured to move laterally along the drift screw when one or more of the drift knob and the drift screw are rotated.

15. The sighting system of claim 14, wherein, Rotation of the drift knob further causes one or more of: the third tab to push against an inner edge of one of the first tab and the second tab; and the aperture mechanism to move laterally with the third tab.

16. The sighting system of claim 1, wherein, The rear sight includes a second base and a second flip-up portion, the second flip-up portion further including: two rear arms; a third opening between the two rear arms; and A hole mechanism, wherein the hole mechanism includes a first end having a first rear hole and a second end having a second rear hole, wherein the first rear hole has a different size than the second rear hole, and wherein a first vertical axis passes through a center of the first rear hole and a second vertical axis passes through a center of the second rear hole, and wherein the first vertical axis is different than the second vertical axis.

17. A flip-up target sight for use with a firearm, the flip-up target sight positioned near a distal end of the firearm, the flip-up target sight comprising: a base for attachment to the firearm; a first arm and a second arm positioned on opposite sides of a longitudinal plane through the firearm; a horizontal connection for connecting the first arm and the second arm, wherein the horizontal connection includes a first hole having a plurality of angled faces; a second hole formed by the first arm, the second arm, and the horizontal connection; a knob positioned within the second hole, the knob comprising: one or more notches on a first side of the knob; a sight post extending from a second side of the knob, and wherein at least a portion of the sight post extends through the first hole; wherein the second hole includes at least one detent and one or more protrusions shaped and sized to interact with the one or more notches as the knob is rotated; wherein the knob is configured to rotate about a first vertical axis, the rotation causing one or more of: a tilt of the knob based at least in part on the at least one detent in mutual contact with one of the one or more notches; and a tilt of the sight post in a direction along a longitudinal axis through the firearm, wherein the tilt of the sight post forces the sight post to press against one or more of the angled faces of the first hole.

18. The flip-up target sight according to claim 17, wherein, the first vertical axis passes through one or more of a center of the knob and a center of the sight post, and wherein a second vertical axis passes through a center of the first hole, and wherein the first vertical axis and the second vertical axis are tilted relative to one another based at least in part on the tilt of the sight post, the tilt of the knob, or a combination thereof.

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