Sighting device mounting system, sighting device and adapter plate

Abstract

The invention relates to a method for focusing an optical sight (200; 500) to a sight mounting system (300; 400), comprising: a sight mounting interface (110; 410) and an elongated dovetail member (305), where the elongated dovetail member (305) is arranged to be forced against the inclined rear wall (125) of the sight mounting interface (110) and against the inclined rear wall (125) of the optical sight (200; 500) and an inclined rear surface (240; 540) of the reflective sight, where the inclined front surface (245; 545) is forced against an inclined front wall (135) of the sight mounting interface (110). A method for mounting to the sight mounting interface (110; 410) and an adapter plate for mounting the sight to the sight mounting interface.

Description

Technical Field

[0001] The present disclosure relates to a sight mounting system, a sight, and an adapter plate, and more particularly to a sight mounting system for mounting a sight to a firearm, a sight for mounting to a sight mounting interface, and an adapter plate for mounting a sight to a firearm. Background Art

[0002] Removably mounted sighting devices are commonly used on firearms such as shotguns. Recently, the use of removably arranged sighting devices on smaller firearms such as single-shot pistols and revolvers has also become increasingly common. The sighting device may be an optical sight including both a magnifying sight and a non-magnifying sight.

[0003] Reflex sights, also known as red dot sights, are popular non-magnified sights. Due to their advantageous features, reflex sights are commonly used on firearms such as hunting rifles, shotguns, automatic rifles and semi-automatic rifles, and also on small firearms such as pistols.

[0004] Regardless of which sighting device is mounted on a firearm, both the sighting device and the mounting are exposed to different types of stresses during use. In particular, this applies to sights mounted on smaller weapons such as single-shot pistols. Firearms used for hunting, police or the military are used in different environments and weather conditions that expose both the sight and the mounting assembly to different types of stresses. This can be, for example, rain, snow, dirt, temperature changes, vibrations or recoil when the firearm is fired. Such conditions place great demands on both the sighting device and the associated mounting.

[0005] Mass production may result in variations in the geometric tolerances of both the sighting device and the assembly. In addition, the firearm, mounting, and sight are often provided by different manufacturers. Such a situation may adversely affect the conditions under which the various components fit together, thereby preventing the sighting device from being mounted on the weapon in a correct and robust manner. Geometric variations that may occur during manufacturing may result in gaps between the sight and the various parts of the assembly. This in turn may make it more difficult to aim, or the sight will not maintain its zeroing because the sight and the firearm cannot be aligned, the sight is moved, or even becomes loose due to repeated firing.

[0006] Often, attempts are made to mitigate these disadvantages by manually finishing the sight and / or mounting so that the parts should at least reasonably fit together.

[0007] This process is both time consuming and costly. In addition, it is not possible to move the sight or mount to another weapon without further manual processing to fit the sight and mount to a particular firearm.

[0008] There are different previously known methods and technical solutions for mounting a sight on a firearm. Many solutions are based on attaching the sight to the firearm via a track mounted on the firearm (for example, the Weaver track developed by W.R. Weaver Co. or the Picatinny track developed by the U.S. military). Although both of these tracks provide a robust mounting of the sight, they may cause problems with the center of the sight being above the center of the bore of the firearm. Both tracks also provide a high mount, i.e., a distance is created between the bore of the firearm and the line of sight through the sight, which may have a negative impact on the likelihood of hitting a target at different distances. In addition, the track is expensive to machine and is not suitable for mounting smaller sights on pistols.

[0009] One way to mount smaller sights on a pistol is to use a screw joint in combination with a guide pin. This is an expensive and precision-demanding solution that often results in undesired movement between the sight and the firearm due to repeated firing, which in turn results in altered shot groupings. This technique assumes that the screws can be installed through the center portion of the sight. The problem with this solution is that if the sight is a closed design rather than an open design, the screws cannot be installed from above because they must pass through the sealed wall of the sight. Therefore, this method is only suitable for mounting open design sights.

[0010] Prior art mounting systems for micro red dot sights use a combination of screw fastening and pins. US2021 / 0270572 describes a sight system comprising a fixed open sight configured with an aiming notch and a reflex sight arranged to function as a rear sight system for a slide on a single-shot pistol. The reflex sight is an open reflex sight that is attached to the slide using two screws arranged laterally, one on each side of the longitudinal axis of the open reflex sight. Pins are used to stabilize the attachment of the reflex sight to the slide.

[0011] However, this is an expensive and precision-intensive solution which nevertheless often results in undesired movement between sight and weapon, which in turn results in displacement of the shot groupings.

[0012] WO2021 / 145953 describes a sliding assembly, which includes a sliding sleeve, a front iron sight and a rear iron sight, for allowing a user to aim a firearm in a conventional manner. The sliding sleeve includes a bottom side and a top side, and the top side is provided with a mounting recess at the proximal end, and the mounting recess has one or more retaining holes for receiving an optical sight. The optical sight includes a viewfinder operable to project a reflective or holographic bright spot and a substrate with two mounting holes to receive corresponding screw fasteners for rigidly attaching the optical sight to the sliding sleeve via a threaded retaining hole in the mounting recess of the sliding sleeve. When attaching an optical sight with a shorter length, for example, a gap will be formed between the proximal end of the mounting recess and the proximal end of the optical sight installed. The gap may reduce the support provided to the optical sight, which in turn may cause damage to the sight or shearing of the fastener caused by the extreme force generated by the reciprocating motion of the sliding sleeve. One or more keyed spacers may be positioned to fill the gap and provide additional support for the optical sight. The keyed spacer may also be provided with one or more cams with coupling screws, whereby tightening of the screws pushes the cams against the rear of the optical sight to further improve the grip between the keyed spacer and the optical sight.

[0013] These prior art sight mounting systems have the disadvantage that they are only configured for use with open optical sights, such as open micro red dot sights.

[0014] US2022034631 describes a mounting system for mounting a closed micro red dot sight (MRDS) to a firearm. The mounting system includes an accessory mounting structure including a protrusion and a threaded opening. The protrusion helps to align the accessories on the firearm, and the threaded opening engages the screw. The mounting system includes a plurality of elements including a dovetail connection component having an upper surface including two screw holes that allow the dovetail connection component to be fixed to the firearm. The bottom surface of the closed MRDS includes a plurality of channels that allow the micro red dot sight to be slidably connected to the dovetail connection component and is also compatible with the accessory mounting structure of the firearm. In addition, a recessed portion extending along the length of the side of the MRDS is provided with screw holes arranged to fix the side plate. The side plate has screw holes corresponding to the screw holes of the MRD. Tightening the screws in the holes clamps the side cover plate to the MRD. This is an expensive and precision-demanding solution involving multiple elements that require multiple installation steps for fastening the MRDS to the firearm.

[0015] The inventors have recognized that there is room for improvement in this regard. Accordingly, the inventors have identified both the need and benefit for a novel and inventive mounting system for mounting a sight to a firearm. Summary of the invention

[0016] Therefore, the teachings of the present application are directed to solving, eliminating, alleviating or reducing, avoiding at least some of the above mentioned problems and disadvantages.

[0017] According to one aspect of the present disclosure, this is achieved by a sight mounting system for mounting a sight. The sight mounting system comprises: a sight mounting interface, the sight mounting interface comprising an inclined rear wall, a flat longitudinal mounting surface, and an inclined front wall for receiving the sight;

[0018] an elongated dovetail member having a planar upper surface, a planar lower surface, a first long side portion and a second long side portion, the two sides sloping downwardly and inwardly from the upper surface to the lower surface, the upper surface having at least two screw holes for receiving screws passing through the elongated dovetail member and screwed into screw holes of the sight mounting interface;

[0019] wherein the elongated dovetail member is arranged to be forced into intimate contact with the inclined rear wall of the sight mounting interface and the inclined rear surface of the sight, and wherein at least a portion of the inclined front surface of the reflex sight is forced against at least a portion of the inclined front wall of the sight mounting interface.

[0020] In an advantageous embodiment, the sight mounting interface is provided with a groove extending along at least a portion of the longitudinal mounting surface and arranged to receive a longitudinal tenon proximally centered along the longitudinal direction of the bottom surface of the sight, wherein the length and depth of the groove are arranged to closely match the length and height of the tenon, and wherein the longitudinal inner surface of the groove is arranged to engage with a longitudinal wall surface of the tenon.

[0021] In an advantageous embodiment, the longitudinal inner surface of the groove is inclined inwardly at a certain angle in the direction of the bottom of the groove forming the center of the mounting surface of the sight mounting interface, so as to receive the longitudinal wall surface inclined inwardly at a certain angle in the direction of the center of the bottom surface of the tenon.

[0022] In an advantageous embodiment, the rear wall is tilted rearwardly at an angle α relative to the normal vector of the planar mounting surface so as to cooperate with the first long side of the elongated dovetail member, and the front wall is tilted rearwardly at an angle β relative to the normal vector of the planar mounting surface so as to cooperate with the front surface of the sight.

[0023] In an advantageous embodiment, the rear wall comprises a vertical portion extending from the planar mounting surface to an inclined portion of the rear wall, and the front wall comprises a first vertical portion extending from the planar mounting surface to an inclined portion extending to a second vertical portion of the front wall.

[0024] In an advantageous embodiment, an inclined portion of the front surface of the reflex sight engages an inclined portion of the front wall of the sight mounting interface, thereby forming a small gap between a first vertical portion of the front surface of the reflex sight and the first vertical portion of the front wall.

[0025] In an advantageous embodiment, when the sight mounting system is assembled, a small gap exists between the flat lower surface of the elongated dovetail member and the mounting surface of the sight mounting interface, and a small gap exists between the bottom surface of the reflex sight and the mounting surface.

[0026] According to a second aspect, there is provided a sight mounting system for mounting a sight to a firearm, comprising:

[0027] a sight mounting interface having an inclined rear wall, a flat longitudinal mounting surface, and an inclined front wall for receiving the sight;

[0028] an elongated dovetail member having a planar upper surface, a planar lower surface, a first long side portion and a second long side portion, the two sides sloping downwardly and inwardly from the upper surface to the lower surface, the upper surface having at least two screw holes for receiving screws passing through the elongated dovetail member and screwed into screw holes of the sight mounting interface;

[0029] wherein the elongated dovetail member is arranged to be forced into intimate contact with the inclined front wall of the sight mounting interface and the inclined front surface of the sight, and wherein at least a portion of the inclined rear surface of the sight is forced against at least a portion of the inclined rear wall of the sight mounting interface.

[0030] In an advantageous embodiment, the sight mounting interface is provided with a longitudinal tenon extending along at least a portion of the longitudinal mounting surface, the longitudinal tenon being arranged to engage with a corresponding longitudinal groove proximally centered along the longitudinal direction of the bottom surface of the sight, wherein the length and depth of the tenon are arranged to closely match the length and height of the groove, and wherein the longitudinal wall surface of the tenon is arranged to engage with a longitudinal inner surface of the groove.

[0031] In an advantageous embodiment, the longitudinal wall surface is angled inwardly in a direction towards the centre of the bottom surface of the tenon for engagement with the longitudinal inner surface of the groove angled inwardly in a direction towards the centre of the bottom surface of the sight.

[0032] In an advantageous embodiment, the rear wall is tilted forwardly at an angle α relative to the normal vector of the mounting surface so as to cooperate with the rear surface of the sight, and the front wall is tilted forwardly at an angle β relative to the normal vector of the flat mounting surface so as to cooperate with the second long side of the elongated dovetail member.

[0033] In an advantageous embodiment, the rear wall comprises a first vertical portion of the rear wall extending from the flat mounting surface to an inclined portion connecting a second vertical portion of the rear wall, and the front wall comprises a vertical portion of the front wall extending from the flat mounting surface to the inclined portion of the front wall.

[0034] In an advantageous embodiment, the inclined portion of the rear surface of the reflex sight engages an inclined portion of the rear wall of the sight mounting interface, thereby forming a small gap between a first vertical portion of the rear surface of the reflex sight and a first vertical portion of the rear wall.

[0035] In an advantageous embodiment, when the sight mounting system is assembled, there is a small gap between the flat lower surface of the elongated dovetail member and the mounting surface, and there is a small gap between the bottom surface of the reflex sight and the mounting surface.

[0036] In some embodiments, the sight mounting interface is disposed on a slide for a firearm, or on another sight to be mounted on a firearm, a light artillery system, or a man-portable launcher.

[0037] In some embodiments, the elongated dovetail member is provided with an auxiliary open sight, the auxiliary open sight forming:

[0038] an integral part of said elongated dovetail member; or

[0039] A removable portion is disposed in a sight receiver on the projection of the elongated dovetail member.

[0040] According to a third aspect, a sight for mounting to a sight mounting interface is provided, wherein the sight comprises a housing having a base, the base having a bottom surface provided with a longitudinal tenon, wherein the longitudinal tenon has a longitudinal wall surface, the longitudinal wall surface is inclined inwardly at a certain angle in a direction towards the center of the bottom surface for engaging a corresponding inclined longitudinal inner surface of a groove of the sight mounting interface, the front surface is inclined rearwardly to engage a front wall of the sight mounting interface, and the rear surface is inclined forwardly to engage an elongated dovetail member, the elongated dovetail member forming a removable attachment element for fixing the sight to the sight mounting interface.

[0041] According to a fourth aspect, a sight for mounting to a sight mounting interface is provided, wherein the sight comprises a housing having a base, the base having a bottom surface provided with a longitudinal groove, wherein the longitudinal groove has a longitudinal inner surface, the longitudinal inner surface is inclined inwardly at a certain angle in a direction towards the center of the bottom surface for engaging a corresponding inclined longitudinal wall surface of a tenon of the sight mounting interface, the front surface is inclined rearwardly to engage a front wall of the sight mounting interface, and the rear surface is inclined forwardly to engage an elongated dovetail member, the elongated dovetail member forming a removable attachment element for fixing the sight to the sight mounting interface.

[0042] In an advantageous embodiment, the rear surface of the sight forms at least two parts, including a vertical part extending from the bottom surface upwards to an inclined part.

[0043] In an advantageous embodiment, the front surface of the sight forms at least three parts including a first vertical part extending upwards from the bottom surface to an inclined part connecting a second vertical part.

[0044] In an advantageous embodiment, the sight is a closed reflex sight having an optical element completely enclosed by the housing.

[0045] In some embodiments, the sight is a red dot sight.

[0046] According to a fifth aspect, an adapter plate for mounting a sight to a firearm is provided, wherein the adapter plate has a base having a top surface for attachment to the sight and a bottom surface provided with a longitudinal tenon, wherein the longitudinal tenon has a longitudinal wall surface which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface for engaging a corresponding inclined longitudinal inner surface of a groove of the sight mounting interface, the front surface is inclined rearwardly to engage a front wall of the sight mounting interface, and the rear surface is inclined forwardly to engage an elongated dovetail member which forms a removable attachment element for fixing the adapter plate to the sight mounting interface.

[0047] According to a fifth aspect, an adapter plate for mounting a sight to a firearm is provided, the adapter plate having a base, the base having a top surface for attachment to the sight and a bottom surface provided with a longitudinal groove, wherein the longitudinal tenon has a longitudinal wall surface, the longitudinal wall surface is inclined inwardly at a certain angle in a direction toward the center of the bottom surface for engaging a corresponding inclined longitudinal inner surface of the groove of the sight mounting interface, the rear surface is inclined forwardly to engage a rear wall of the sight mounting interface, and the front surface is inclined rearwardly to engage an elongated dovetail member, the elongated dovetail member forming a removable attachment element for fixing the adapter plate to the sight mounting interface.

[0048] An advantage of some embodiments of the present disclosure is that a closed reflex sight can be mounted to a firearm without play. In addition, the mounting system minimizes or eliminates play by utilizing the outer geometry of the sight housing, thereby forming a clamping joint without additional machining of the sight housing.

[0049] Another advantage of some embodiments of the present disclosure is that the mounting system is anti-backlash and resists reciprocating motion of the sliding sleeve.

[0050] Another advantage of some embodiments of the present disclosure is that differences in geometric tolerances in different parts of the mounting system and sight may be varied without play in the assembly including the sight and mount.

[0051] Additionally, the large forces generated on the mounting system when a shot is fired can be absorbed without moving the target point when the firearm is fired repeatedly.

[0052] Yet another advantage of some embodiments of the present disclosure is that the mounting interface is easy to process and therefore cheap to manufacture in large quantities.

[0053] Further aspects and features of the invention and its embodiments are defined by the appended patent claims and are further explained in the detailed description and in the drawings together with the problems solved and the advantages achieved.

[0054] It should be emphasized that when used in this specification, the term “comprises / comprising” is adopted to specify the presence of stated features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

[0055] Unless otherwise expressly defined herein, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field. Unless otherwise expressly stated, all references to "a / an / the element, device, component, means, etc." are to be openly interpreted as referring to at least one example of an element, device, component, means, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Exemplary embodiments are illustrated by way of example in the accompanying drawings, in which like reference numerals indicate the same or similar elements.

[0057] And among them:

[0058] Figure 1 is a perspective view of a slide for a firearm having a sight receiver according to an embodiment;

[0059] Figure 2 yes Figure 1 A side view of the rear portion of the slide shown in ;

[0060] Figure 3 is a right side view of a closed reflex sight according to an embodiment;

[0061] Figure 4 yes Figure 3 A left side view of the closed reflex sight shown in;

[0062] Figure 5 yes Figure 4 A perspective view of a closed reflex sight shown in ;

[0063] Figure 6 is an exploded side view of a sight mounting system for a firearm according to an embodiment;

[0064] Figure 7 yes Figure 6 A side view of the assembled sight mounting system shown in ;

[0065] Figure 8is an exploded perspective view of a sight mounting system according to an embodiment;

[0066] Fig. 9 yes Figure 8 A side view of the assembled sight mounting system shown in ;

[0067] Fig.10 is an exploded perspective view of a sight mounting system according to an embodiment;

[0068] Fig.11 yes Fig.10 A side view of the assembled sight mounting system is shown in FIG.

[0069] Fig.12 is a perspective view of an attachment member of a sight mounting system according to an alternative embodiment;

[0070] Fig.13 is a perspective view of an attachment member of a sight mounting system according to an alternative embodiment;

[0071] Fig.14 is a perspective view of an adapter plate according to an embodiment; and

[0072] Fig.15 yes Fig.14 Bottom perspective view of the adapter plate in FIG. DETAILED DESCRIPTION

[0073] Reference Figures 1 to 13 Describe embodiments of the present invention, Figures 1 to 13 All schematically illustrate exemplary arrangements according to some embodiments of the present invention. Any equivalent changes and modifications made according to the appended claims are intended to be covered by the claims.

[0074] Embodiments will now be described in detail with reference to the accompanying drawings. The same reference numerals are used for corresponding features in the different drawings.

[0075] refer to Figure 1 , Figure 1 A slide 100 for a firearm (for example but not limited to a pistol or single-shot pistol) having a sight mounting interface 110 according to an exemplary embodiment of the subject disclosure is illustrated. The slide 100 is configured to be disposed on a firearm frame or receiver that integrates other components to form a complete firearm.

[0076] The sight mounting interface 110 may be a milled recess or optical cutout configured to receive a sight (e.g., an optical sight) that may be mounted on the slide 100 in a rear portion of the slide (i.e., the portion of the slide that is located next to the shooter or marksman holding the firearm during conventional use). The slide 100 may include a front sight receiver 115 disposed on a top surface 120 in a front portion of the slide 100.

[0077] like Figure 1 , the sight mounting interface 110 includes a rear wall 125, a generally flat longitudinal mounting surface 130, and a front wall 135. A groove 140 may be machined (e.g., milled) in the longitudinal mounting surface 130. The groove 140 may extend along at least a portion of the longitudinal mounting surface 130 (but preferably along a major portion of the longitudinal mounting surface 130). Advantageously, the groove 140 is aligned with the slide and barrel of the firearm. In addition, the sight mounting interface 110 may have two screw holes 145 disposed on each side of the longitudinal surface, which in this embodiment are adjacent to the rear wall 125.

[0078] The rear sight receiver 150 may be machined or milled as a slot between the front wall 135 of the sight receiver 110 and the ejection port 155 of the slide 100. The rear sight receiver 150 may be a dovetail groove extending perpendicular to the longitudinal direction of the slide 100.

[0079] Figure 2 The rear portion of the slide 100 including the sight mounting interface 110 is shown. The rear wall 125 is angled rearwardly relative to the mounting surface 130 to mate with a corresponding surface of an attachment element described later. The front wall 135 is angled rearwardly relative to the mounting surface 130 to mate with a corresponding surface of an attachment element described later. Figures 3 to 5 The corresponding front surface of the housing of the sight 200 shown in FIG. 1 or an adapter plate (eg, a mounting plate described later).

[0080] In this embodiment, the sight 200 is a closed reflex sight including a housing 205 forming a rear frame 210 holding a protective rear glass 215, a front frame 220 holding a viewing lens 225, a base 226 having a bottom surface 230 provided with a longitudinal tenon 235. The optical elements of the sight 200 include a battery-powered light source, such as but not limited to a red light emitting diode (LED) arranged in an optical channel inside the housing 205 to project a beam of light through the path of the sight. The beam of light is reflected by the reflective surface of the viewing lens 225 in a direction toward the protective rear glass 215. Thus, when the observer looks through the reflex sight 200 via the protective rear glass 215, the observer (i.e., the shooter or marksman) is allowed to see an infinite image of an illuminated reticle (in this embodiment, a red dot) created simultaneously by the reflected beam of light and the field of view.

[0081] Therefore, the optical elements of the reflex sight 200 are completely enclosed and thus protected from any dirt, moisture, snow, and will not be damaged even when used in harsh conditions. In some embodiments, a front glass can be installed in front of the viewing lens 225 to protect the lens from dust, moisture, snow, fingers and scratches.

[0082] According to some embodiments, batteries may be inserted into a battery tray 236 within the base 226 for powering the LEDs.

[0083] like Figure 2 As shown in , the rear wall 125 of the sight mounting interface 110 is tilted backward at an angle α relative to the normal vector of the flat mounting surface 130, which angle α may be, but is not limited to, 45°, and the front wall 135 is tilted backward at an angle β relative to the normal vector of the flat mounting surface 130, which angle β may be, but is not limited to, 45°. However, in other embodiments, the rear wall and the front wall may be tilted, for example, but not limited to, about 30° to 60°. Depending on the shape of the removable attachment element and the housing of the reflex sight, the rear wall and the front wall may be tilted to different degrees.

[0084] In addition, the rear wall 125 can be formed in two parts, with a vertical portion 160 of the rear wall extending upward from the flat mounting surface 130 to an inclined portion 165 of the rear wall. The front wall 135 can be formed in three parts, with a first vertical portion 170 of the front wall extending upward from the flat mounting surface 130 to an inclined portion 175 of the front wall, and the inclined portion 175 of the front wall connecting the second vertical portion 180 of the front wall 135.

[0085] like Figures 3 to 5 As shown in , the rear surface 240 and the front surface 245 of the base 226 of the housing 205 are shaped to respectively mate with the rear wall 125 or the front wall 135 of the corresponding attachment element (described later) and the sight mounting interface 110. The rear surface 240 is tilted forward (i.e., in a direction away from an observer using the reflex sight 200) relative to the normal vector of the bottom surface 230 by an angle α, which may be, but is not limited to, 45°. The front surface 245 of the reflex sight 200 is tilted backward (i.e., in a direction opposite to the observer) relative to the normal vector of the bottom surface 230 by an angle β, which may be, but is not limited to, 45°. However, in other embodiments, the rear surface 240 and the front surface 245 may be tilted, for example, but not limited to, about 30° to 60°. Depending on the shape of the attachment element and the housing of the reflex sight, the rear surface 240 and the front surface 245 may be tilted by different degrees.

[0086] In addition, the rear surface 240 may be formed in two parts, with the vertical part 250 extending upward from the bottom surface 230 to the inclined part 255. The front surface 245 may be formed in three parts, with the first vertical part 260 extending upward from the bottom surface 230 to the inclined part 265 connecting the second vertical part 270 of the front surface 245.

[0087] like Figure 4 As illustrated in , the reflex sight 200 may be provided with a dual button 275 having a "+" button and a "-" button operably connected to circuitry inside the housing 205 for adjusting the intensity of the reticle produced by the battery powered LED.

[0088] Figure 5 , wherein a longitudinal tenon 235 is centered proximally along the longitudinal direction of the bottom surface 230 of the housing 205. Although the longitudinal tenon 235 extends along at least a portion of the bottom surface 230 in this embodiment, the longitudinal tenon 235 may advantageously extend along all or at least a major portion of the length of the bottom surface 230. However, the longitudinal tenon 235 should not be longer than the groove 140 formed in the longitudinal mounting surface 130 of the sight mounting interface 110. In particular, the longitudinal tenon 235 is sized, oriented, and shaped to engage with the correspondingly sized, oriented, and shaped groove 140. Therefore, the length and height of the tenon 235 may closely match the length and depth of the groove 140 of the sight mounting surface 110. Thus, when the reflex sight 200 is mounted to the sight mounting interface 110, a gap is created between the tenon 235 and the bottom 142 of the groove 140. In some embodiments, the height of the tenon 235 may be lower than the depth of the groove 140.

[0089] Advantageously, the tenon 235 may have a longitudinal wall surface 280 which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface 230, such as Figure 5 As shown in Figure 1 As shown in , the groove 140 may have a corresponding longitudinal inner surface 185 that is inclined inwardly at a certain angle in a direction toward the center of the mounting surface 130 of the sight mounting interface 110 (i.e., the bottom of the groove 140). In this embodiment, the angle of the tenon 235 and the angle of the groove may be 20°. However, in other embodiments, the angle of the tenon and the corresponding groove may be, but is not limited to, 15° to 35°.

[0090] Figure 6 An embodiment of a sight mounting system 300 for mounting a sight on a firearm is shown. The sight may be, but is not limited to, a combination of Figures 3 to 5The reflex sight 200 described above. In this embodiment, the sight mounting system 300 includes the sight mounting interface 110 and an elongated dovetail member 305 or wedge forming a removable attachment element. The elongated dovetail member 305 has a flat upper surface 310 and a flat lower surface 315 for facing the flat mounting surface 130 of the sight mounting interface 110. In addition, the elongated dovetail member 305 has a first long side 320a and a second long side 320b that are inclined downwardly and inwardly from the upper surface 310 to the lower surface 315, thereby forming a dovetail-shaped profile.

[0091] In this embodiment, the first long side portion 320a and the second long side portion 320b are inclined inwardly at 45°. However, in other embodiments, the first long side portion 320a and the second long side portion 320b may be inclined at other angles, for example but not limited to about 30° to 60°.

[0092] The upper surface 310 of the elongated dovetail member may have at least two screw holes 325 for receiving screws 330 , and the at least two screw holes 325 may be countersunk holes.

[0093] When the sight mounting system 300 is assembled, the reflex sight 200 is placed on the sight mounting interface 110, wherein the longitudinal tenon 235 of the reflex sight 200 is aligned to mate with the groove 140 of the sight mounting interface, and wherein at least a portion of the front surface 245 of the reflex sight 200 engages at least a portion of the front wall 135 of the sight mounting interface 110. The angled longitudinal wall surface 280 of the tenon 235 engages the corresponding longitudinal inner surface 185 of the groove 140.

[0094] See also Figure 7, the reflex sight 200 is attached to the sight mounting interface 110 on the slide 100 by means of two screws 330, which are arranged to pass through the screw holes 325 passing through the elongated dovetail member 305 and are screwed into the screw holes 145 of the sight mounting interface 110. The first inclined long side 320a of the elongated dovetail member 305 is forced into close contact with the inclined rear wall 125 of the sight mounting interface 110, and the second inclined long side 320b of the elongated dovetail member 305 is forced into close contact with the inclined rear surface 240 of the reflex sight 200. As a result, the reflex sight is forced downward into the sight mounting interface 110 and forward against the front wall 135. Advantageously, the inclined portion 265 of the front surface 245 of the reflex sight 200 engages the inclined portion 175 of the front wall 135 of the sight mounting interface 110, thereby forming a small distance or gap 316 between the first vertical portion 260 of the reflex sight 200 and the first vertical portion 170 of the front wall 135. The gap 316 can be, but is not limited to, between 0 mm and 1 mm. In some embodiments, the gap 316 can be 0.1 mm to 0.5 mm. In addition, the flat lower surface 315 of the elongated dovetail member 305 should not come into contact with the mounting surface 130 of the sight mounting interface 110, the tenon 235 should not come into contact with the bottom of the groove 140, and the bottom surface 230 of the reflex sight 200 should not come into contact with the mounting surface 130 of the sight mounting interface 110. Thus, when the sight mounting system 300 is assembled, there is a small distance or gap 317 between the lower surface of the elongated dovetail member 315 and the mounting surface 130, and there is a small distance or gap 318 between the bottom surface 230 of the reflex sight 200 and the mounting surface 130. The gaps 317, 318 may be, but are not limited to, between 0 mm and 1 mm (for example, 0.1 mm to 0.5 mm). In some embodiments, the gap 318 may be 0.01 mm to 0.1 mm.

[0095] Thus, the tenon 235 and the groove form a joint that prevents any lateral movement or rotation of the reflex sight 200 relative to the sight mounting interface 110 due to repeated firing. A secure attachment of the reflex sight 200 to the sight mounting interface 110 is provided because the front surface 245 of the reflex sight is forced against the front wall 135 of the sight mounting interface 110. This prevents any movement of the sight relative to the sight mounting interface due to high forces caused by frequent firing.

[0096] Advantageously, differences in geometric tolerances among the various portions of the sight mounting system 300 , including the reflex sight 200 , the sight mounting interface 110 , and the screw-type elongated dovetail member 305 , may be varied without any play in the assembly.

[0097] In this embodiment of the reflex sight 200 , the center of mass is located near the front of the sight. In order to reduce the load on the screw 330 , the elongated dovetail member 305 is advantageously arranged at the rear surface 240 of the reflex sight 200 .

[0098] Figure 8 The sight mounting system 300 is illustrated, which includes a reflex sight 200, which is arranged to be mounted on the sight mounting interface 110 of the slide 100. In addition, the sight mounting system 300 includes an elongated dovetail member 305. When assembling the sight mounting system 300, the reflex sight 200 is placed on the sight mounting interface 110, wherein the longitudinal tenon 235 of the reflex sight 200 is aligned to fit the groove 140 of the sight mounting interface, wherein the front surface 245 of the reflex sight 200 engages the front wall 135 of the sight mounting interface 110. Therefore, the inclined longitudinal wall surface 280 of the tenon 235 engages with the corresponding longitudinal inner surface 185 of the groove 140. The reflex sight 200 is attached to the sight mounting interface 110 of the slide 100 by means of two screws 330, which are provided through screw holes 325 passing through the elongated dovetail member 305 and screwed into the screw holes 145 of the sight mounting interface 110. The first inclined long side 320a of the elongated dovetail member 305 is forced into close contact with the inclined rear wall 125 of the sight mounting interface 110, and the second inclined long side 320b of the elongated dovetail member 305 is forced into close contact with the inclined rear surface 240 of the reflex sight 200.

[0099] In this embodiment, the sight mounting interface 110 is provided with a groove 140 for receiving a corresponding tenon 235 of the reflex sight 200. However, in other embodiments, the sight mounting interface 110 may be provided with a tenon, and the reflex sight may be provided with a corresponding groove of the reflex sight 200.

[0100] In some embodiments, the width of the base of the tenon 235 may be wider than the width of the opening into the groove 140. Thus, when the sight mounting system 300 is assembled, the height of the tenon 235 may even be less than the depth of the groove 140 and still provide a gap 318 between the bottom surface 230 of the reflex sight 200 and the mounting surface 130.

[0101] In this embodiment, an auxiliary open sight including a removable rear sight 190 may be provided, for example, an open iron sight including an elongated dovetail member provided with an aiming notch. The rear sight 190 may be slid into the rear sight receiver 150 on the slide 100, and the front sight 195 may be mounted on the front sight receiver 115. Thus, the auxiliary open sights 190, 195 may be viewed through the reflex sight 200 by a shooter or marksman using a firearm provided with the slide 100. Advantageously, the auxiliary open sight may be used with the reflex sight closed.

[0102] See also Fig. 9 , the reflex sight 200 is attached to the sight mounting interface 110 on the slide 100 by means of a screw-type elongated dovetail member 305. The removable rear sight 190 is arranged in the rear sight receiver 150 on the slide 120, and the front sight 195 is mounted on the front sight receiver 115.

[0103] Fig.10 An embodiment of a sight mounting system 400 for a firearm is illustrated. In this embodiment, the sight mounting system 400 includes a sight 500 arranged to be mounted on a sight mounting interface 410 in a rear portion of a slide 405. The slide 405 is configured to be arranged on a firearm frame or receiver that is integrated with other components to form a complete firearm, such as, but not limited to, a pistol or a single-shot pistol.

[0104] In this embodiment, the slide 405 may include a front sight receiver 415 disposed on a top surface 420 in a front portion of the slide 405 for receiving a front sight 416 .

[0105] The sight mounting interface 410 includes a rear wall 425, a generally flat longitudinal mounting surface 430, and a front wall 435. In this embodiment, the longitudinal mounting surface 430 is provided with a longitudinal tenon 440 that can be advantageously aligned with a slide and barrel of a firearm. Additionally, in this embodiment, the sight mounting interface 410 has two screw holes 445 disposed on each side of the longitudinal surface adjacent to the front wall 435 of the sight mounting interface 410.

[0106] In one embodiment, the rear sight receiver may be machined (preferably milled) as a slot between the front wall 435 of the sight receiver 410 and the ejection port 455 of the slide 405. The rear sight receiver may be a dovetail slot extending perpendicular to the longitudinal direction of the slide 405. In another embodiment, the rear sight receiver may be arranged as a slot in a portion of the slide 405 extending between the rear wall 425 of the sight mounting interface 420 and the rear end 426 of the slide 405. The rear sight receiver may be a dovetail slot extending perpendicular to the longitudinal direction of the slide 405.

[0107] The rear wall 425 is angled forward relative to the mounting surface 430 to mate with a corresponding surface of a housing or adapter plate (eg, mounting plate) of the reflex sight 500. The front wall 435 is angled forward relative to the mounting surface 430 to mate with a corresponding surface of the elongated dovetail member 305.

[0108] In this embodiment, the reflex sight 500 is a closed reflex sight including a housing 505 forming a rear frame 510 holding a protective rear glass 515, a front frame 520 holding a viewing lens 525, a base 526 having a bottom surface 530 provided with a groove 535 along a major portion of the bottom surface 530. The groove 535 may extend along at least a portion of the bottom surface 530, but preferably along a major portion of the bottom surface 530. Advantageously, when the sight is mounted on the sight mounting interface 410, the groove 535 is aligned with the slide and barrel of the firearm.

[0109] A battery powered light source, such as but not limited to a red light emitting diode (LED), is arranged in a light channel inside the housing 505 to project a beam of light through the path of the sight. The beam of light is reflected by the reflective surface of the viewing lens 525 in a direction toward the protective rear glass 515.

[0110] Thus, the optical elements of the reflex sight 500 are completely enclosed and are thereby protected from any dirt, moisture, snow, and will not be damaged even when used under adverse conditions.

[0111] like Fig.10 As shown in FIG. 4 , the rear wall 425 of the sight mounting interface 410 is tilted forward at, but not limited to, 45° relative to the normal vector of the flat mounting surface 430 , and the front wall 435 is tilted forward at, but not limited to, 45° relative to the normal vector of the flat mounting surface 430 .

[0112] However, in other embodiments, the rear wall and the front wall may be inclined at other angles, for example but not limited to, about 30° to 60°.

[0113] The rear wall 425 may be formed in three parts, with a first vertical portion of the rear wall extending upward from the flat mounting surface 430 to an inclined portion of the rear wall, which connects a second vertical portion of the rear wall 425. The front wall 435 may be formed in two parts, with a vertical portion of the front wall extending upward from the flat mounting surface 430 to the inclined portion of the front wall. Depending on the shape of the attachment element and the housing of the reflex sight, the rear wall and the front wall may be inclined at different degrees.

[0114] In this embodiment, the rear surface 540 and the front surface 545 of the base 526 of the housing 505 are designed to mate with the corresponding rear wall 425 of the sight mounting interface 410 and the attachment element 305, respectively.

[0115] The rear surface 540 is tilted 45° forward (i.e., in a direction away from an observer using the reflex sight 500), and the front surface 545 of the reflex sight 500 is tilted 45° backward (i.e., in a direction opposite to the observer). However, in other embodiments, the rear surface 540 and the front surface 545 may be tilted at other angles, for example but not limited to about 30° to 60°. Depending on the shape of the attachment element and the housing of the reflex sight, the rear surface 540 and the front surface 545 may be tilted at different degrees. In addition, the rear surface 540 of the reflex sight 500 may be formed in two parts, with a vertical part extending from the bottom surface 430 of the sight mounting interface 410 to the tilted part. The front surface 545 may be formed in three parts, with a first vertical part extending from the bottom surface 430 to the tilted part, and further extending to a second vertical part of the front surface 545.

[0116] The longitudinal tenon 440 along the bottom surface 430 should not be longer than the groove 535 in the longitudinal mounting surface 530 of the reflex sight 500. In particular, the longitudinal tenon 440 is sized, oriented, and shaped to engage with the correspondingly sized, oriented, and shaped groove 535. Thus, the length and height of the tenon 440 can closely match the length and depth of the groove 535, thereby forming a gap between the tenon 440 and the bottom of the groove 535 when the sight mounting system 300 is assembled. In some embodiments, the height of the tenon 440 can be less than the depth of the groove 535.

[0117] Advantageously, the tenon 440 may have a longitudinal wall surface 480 that slopes inwardly in a direction toward the center of the mounting surface 430, such as Fig.10 . The groove 535 may have a corresponding longitudinal inner surface 536 that is inclined inwardly in a direction toward the center of the bottom surface 530 of the reflex sight 500. In this embodiment, the angle of the tenon 440 and the angle of the groove 535 may be 20°. However, in other embodiments, the angle of the tenon and the corresponding groove may be, but is not limited to, 15° to 35°.

[0118] In this embodiment, the sight mounting system 400 is assembled, wherein the reflex sight 500 is placed on the sight mounting interface 410, wherein the longitudinal groove 535 of the reflex sight 500 is aligned to mate with the longitudinal tenon 440 of the sight mounting interface, wherein at least a portion of the rear surface 540 of the reflex sight 500 engages at least a portion of the rear wall 425 of the sight mounting interface 410. Thus, the inclined longitudinal wall surface 480 of the tenon 440 engages with the corresponding longitudinal inner surface of the groove 535, thereby forming a joint, thereby preventing any lateral movement or rotation of the reflex sight 500 relative to the sight mounting interface 410 due to repeated firing.

[0119] Additionally, the sight mounting system 400 includes a combination of Figure 6 An elongated dovetail member 305 or wedge is depicted.

[0120] See also Fig.11 , the reflex sight 500 is attached to the sight mounting interface 410 on the slide 405 by means of two screws 330, which are arranged to pass through the screw holes 325 passing through the elongated dovetail member 305 and are screwed into the screw holes 445 of the sight mounting interface 410. In this embodiment, the first inclined long side 320a of the elongated dovetail member 305 is thereby forced into close contact with the inclined front surface 545 of the reflex sight 500, and the second inclined long side 320b of the elongated dovetail member 305 is forced against the front wall 435 of the sight mounting interface 410. The rear surface 540 of the reflex sight 500 is forced downward into the sight mounting interface 410 and rearwardly against the rear wall 425 of the sight mounting interface 410, thereby providing a secure attachment of the reflex sight 500 to the sight mounting interface 410, thereby preventing any movement of the sight relative to the sight mounting interface due to large forces caused by frequent firing.

[0121] Advantageously, the inclined portion of the rear surface 540 of the reflex sight 500 engages the inclined portion of the rear wall 425 of the sight mounting interface 410, thereby forming a small distance or gap between the vertical portion of the rear surface 540 of the reflex sight 500 and the first vertical portion of the rear wall 425. The gap may be, but is not limited to, between 0 mm and 1 mm (for example, 0.1 mm to 0.5 mm). In addition, the flat lower surface 315 of the elongated dovetail member 305 should not come into contact with the mounting surface 430 of the sight mounting interface 410, the tenon 440 of the sight mounting interface 410 should not come into contact with the bottom of the groove 535 of the reflex sight 500, and the bottom surface 530 of the reflex sight 200 should not come into contact with the mounting surface 430 of the sight mounting interface 410. Thus, when the sight mounting system 400 is assembled together, a small distance or gap 347 exists between the lower surface of the elongated dovetail member 315 and the mounting surface 430 , and a small distance or gap 348 exists between the bottom surface of the reflex sight 500 and the mounting surface 430 .

[0122] The gaps 347, 348 may be, but are not limited to, between 0 mm and 1 mm (for example, 0.1 mm and 0.5 mm). In some embodiments, the gap 318 may be 0.01 mm to 0.1 mm.

[0123] Advantageously, differences in geometric tolerances among various portions of the sight mounting system 400 , including the reflex sight 500 , the sight mounting interface 410 , and the screw-type elongated dovetail member 305 , may be varied without any play in the assembly.

[0124] In this embodiment, the sight mounting interface 410 is provided with a tenon 440 for engaging a corresponding groove 535 of the reflex sight 500. However, in other embodiments, the sight mounting interface 410 may be provided with a groove, and the reflex sight may be provided with a corresponding tenon.

[0125] Fig.12 An alternative embodiment of an elongated dovetail member 605 or wedge forming a removable attachment element is illustrated, the removable attachment element replacing the above-described combination of Figures 1 to 11An elongated dovetail member 605 of a sight mounting system 300, 400 for mounting a sight on a firearm is described. In this embodiment, an auxiliary open sight 606 (for example, an iron sight with an aiming notch) forms an integral part of the elongated dovetail member 605. The elongated dovetail member 605 has an inclined upper surface 610 and a flat lower surface 615 for facing the flat mounting surface 130, 430 of the sight mounting interface 110, 410. In addition, the elongated dovetail member 605 has a first long side 620a and a second long side 620b that slope downwardly and inwardly from the upper surface 610 to the lower surface 615, thereby forming a dovetail profile.

[0126] In this embodiment, the first long side portion 620a and the second long side portion 620b are inclined inwardly at 45°. However, in other embodiments, the first long side portion 620a and the second long side portion 620b may be inclined at other angles, for example but not limited to about 30° to 60°.

[0127] Fig.13 An alternative embodiment of an elongated dovetail member 705 or wedge forming a removable attachment element is illustrated, the removable attachment element replacing the above-described combination of Figures 1 to 11 An elongated dovetail member 705 of a sight mounting system 300, 400 for mounting a sight on a firearm is described. In this embodiment, the elongated dovetail member 705 is provided with an auxiliary open sight 706, for example, a removable iron sight with an aiming notch, arranged in a sight receiver 707 on a protrusion 708. The elongated dovetail member 705 has an inclined upper surface 710 and a flat lower surface 715 for facing the flat mounting surface 130, 430 of the sight mounting interface 110, 410. In addition, the elongated dovetail member 705 has a first long side 720a and a second long side 720b that slope downwardly and inwardly from the upper surface 710 to the lower surface 715, thereby forming a dovetail profile.

[0128] In this embodiment, the first long side portion 720a and the second long side portion 720b are inclined inwardly at 45°. However, in other embodiments, the first long side portion 720a and the second long side portion 720b may be inclined at other angles, for example but not limited to about 30° to 60°.

[0129] The features and advantages of the present invention are apparent from the detailed description, and thus the appended claims are intended to cover all such features and advantages of the present invention that fall within the scope of the present technology. The sight has been described with reference to a closed or "tube" reflex sight. In other embodiments, the sight may be an open reflex sight, an open or closed solar powered internal red dot sight, a laser sight, or any other aiming device for a firearm.

[0130] Embodiments of the sight mounting system have been described with reference to a slide of a firearm (for example, but not limited to, a pistol or a single-shot pistol) having a sight mounting interface for receiving a sight. Thus, the sight can be mounted on the slide by means of the sight mounting interface. In other embodiments, the sight mounting interface can be disposed on another sight, such as a telescopic sight or a fire control system mounted on a firearm, a light artillery system, or a man-portable launcher.

[0131] Embodiments of the sight have been described with reference to a sight having an integral base. In other embodiments, the base may be arranged as a separate component for mounting to a sight mounting interface 110, 410 according to embodiments described herein. Thus, the base forming the separate component may have characterizing features corresponding to the base 226, 526 of the reflex sight 200, 500 as described herein. Additionally, the base may have a top surface arranged to be compatible with the bottom surface of other sights. In some embodiments, the separate base may be implemented as Fig.14 and Fig.15 Adapter plate 800 is shown in FIG.

[0132] refer to Fig.14 and Fig.15 , the rear surface 840 and the front surface 845 of the base 826 of the adapter plate 800 are shaped to mate with the rear wall 125 or the front wall 135 of the corresponding attachment element 305 and the sight mounting interface 110, respectively. The rear surface 840 is tilted forward (i.e., in a direction away from an observer using a reflex sight) at an angle α, which may be, but is not limited to, 45° relative to the normal vector of the bottom surface 830. The front surface 845 of the adapter plate 800 is tilted backward (i.e., in a direction opposite to the observer) at an angle β, which may be, but is not limited to, 45° relative to the normal vector of the bottom surface 830. However, in other embodiments, the rear surface 840 and the front surface 845 may be tilted, for example, but not limited to, about 30° to 60°. Depending on the shape of the attachment element and the housing of the reflex sight, the rear surface 840 and the front surface 845 may be tilted by different degrees.

[0133] In addition, the rear surface 840 may be formed in two parts, the vertical part 850 extending upward from the bottom surface 830 to the inclined part 855. The front surface 845 may be formed in two parts, the first vertical part 860 extending upward from the bottom surface 830 to the inclined part 865.

[0134] refer to Fig.15, the longitudinal tenon 835 is centered proximally along the longitudinal direction of the bottom surface 830 of the adapter plate 800. Although the longitudinal tenon 835 extends along at least a portion of the bottom surface 830 in this embodiment, the longitudinal tenon 835 may advantageously extend along all or at least a major portion of the length of the bottom surface 830. However, the longitudinal tenon 835 should not be longer than the groove 140 formed in the longitudinal mounting surface 130 of the sight mounting interface 110. In particular, the longitudinal tenon 835 is sized, oriented, and shaped to engage with the correspondingly sized, oriented, and shaped groove 140. Therefore, the length and height of the tenon 835 can closely match the length and depth of the groove 140 of the sight mounting surface 110. As a result, when the adapter plate 840 is mounted to the sight mounting interface 110, a gap is created between the tenon 835 and the bottom 142 of the groove 140. In some embodiments, the height of the tenon 835 can be lower than the depth of the groove 140.

[0135] Advantageously, the tenon 835 may have a longitudinal wall surface 880 that is inclined inwardly at a certain angle in a direction toward the center of the bottom surface 830, such as Fig.15 As shown in the figure, to fit into the groove 140, the groove 140 has a corresponding longitudinal inner surface 185, and the corresponding longitudinal inner surface 185 is inclined inwardly at a certain angle in the direction toward the center of the mounting surface 130 of the sight mounting interface 110 (that is, the bottom of the groove 140), as shown in the figure. Figure 1 As shown in . In this embodiment, the angle of the tenon 835 and the angle of the groove can be 20°. However, in other embodiments, the angle of the tenon and the corresponding groove can be, but is not limited to, 15° to 35°.

[0136] The adapter plate 800 has a top surface 855 that can be configured with one or more tabs 890 to engage the bottom surface of a sight (e.g., a reflex sight or a laser sight or any other sighting device) that can be attached to the adapter plate 800. In addition, the top surface 855 can have one or more hollow internally threaded bosses 895 that align with corresponding holes through the reflex sight for receiving fasteners to secure the reflex sight to the adapter plate 800. Tabs and bosses can be arranged anywhere on the top surface 885 so as to engage different bottom surfaces of different sights.

[0137] Other configurations are possible within the scope of the patent claims. However, although embodiments of the sight mounting system and sight have been illustrated in the drawings and described in the foregoing detailed description, the present disclosure is illustrative only, and changes, modifications, and substitutions may be made without departing from the scope of the technology as stated and defined by the appended claims. Therefore, it should be understood that the limitations of the described embodiments are merely for illustrative purposes and are by no means restrictive. On the contrary, the scope of the technology is defined by the appended claims, not the specification, and all changes that fall within the scope of the claims are intended to be included therein.

[0138] In addition, singular references do not exclude a plurality. The terms "a", "an", "first", "second" etc do not exclude a plurality. Reference signs in the claims are provided merely as a clarifying example and should not be construed as limiting the scope of the claims in any way.

Claims

1. A sight mounting system (300; 400) for mounting a sight (200; 500) to a firearm, comprising: A sight mounting interface (110; 410) comprising an inclined rear wall (125; 425), a flat longitudinal mounting surface (130; 430) and an inclined front wall (135; 435) for receiving the sight (200; 500); An elongated dovetail member (305; 605; 705) having a flat upper surface (310), a flat lower surface (315), a first long side portion (320a; 620a； 720a) and a second long side portion (320b; 620b; 720b), both of the first long side portion and the second long side portion being inclined downwardly and inwardly from the upper surface (310; 610; 710) to the lower surface (315; 615; 715), the upper surface (310; 610; 710) having at least two screw holes (325; 625; 725) for receiving a screw (330) passing through the elongated dovetail member (305; 605; 705) and screwed into a screw hole (145; 445) of the sight mounting interface (110; 410); wherein the elongated dovetail member (305; 605; 705) is arranged to be forced into close contact with the inclined rear wall (125) of the sight mounting interface (110) and the inclined rear surface (240; 540) of the sight (200; 500), wherein at least a portion of the inclined front surface (245; 545) of the sight (200; 500) is forced against at least a portion of the inclined front wall (135) of the sight mounting interface (110).

2. The sight mounting system (300; 400) of claim 1, wherein: The first long side portion (320a; 620a; 720a) and the second long side portion (320b; 620b; 720b) ​​are inclined inwardly by 30° to 60°.

3. The sight mounting system (300; 400) of claim 1, wherein: The first long side portion (320a; 620a; 720a) and a second long side portion (320b; 620a; 620b) is tilted inwards 45°.

4. The sight mounting system (300) according to any one of claims 1 to 3, wherein: The sight mounting interface (110) is provided with a groove (140) extending along at least a portion of the longitudinal mounting surface (130) and arranged to receive a longitudinal tenon (235) proximally centered along the longitudinal direction of the bottom surface (230) of the sight (200), wherein the length and depth of the groove (140) are arranged to closely match the length and height of the tenon (235), and wherein the longitudinal inner surface (185) of the groove (140) is arranged to engage with the longitudinal wall surface (280) of the tenon (235).

5. The sight mounting system (300) of claim 4, wherein: The longitudinal inner surface (185) of the groove (140) is inclined inwardly at a certain angle in the direction of the bottom of the groove (140) forming the center of the mounting surface (130) of the sight mounting interface (110) for receiving the longitudinal wall surface (280) inclined inwardly at a certain angle in the direction of the center of the bottom surface (230) of the tenon (235).

6. The sight mounting system (300) of claim 5, wherein the angle of the tenon (235) and the angle of the groove (140) are 15° to 35°.

7. The sight mounting system (300) of claim 5, wherein the angle of the tenon (235) and the angle of the groove (140) are 20°.

8. The sight mounting system (300) according to any one of claims 1 to 7, wherein: The rear wall (125) is tilted rearwardly at an angle α relative to a normal vector of the planar mounting surface (130) so as to mate with a first long side (320a; 620a; 720a) of the elongated dovetail member (305; 605; 705), and the front wall (135) is tilted rearwardly at an angle β relative to a normal vector of the planar mounting surface (130) so as to mate with the front surface (245) of the sight (200; 500).

9. The sight mounting system (300) of claim 8, wherein: α and β are 30° to 60°.

10. The sight mounting system (300) of claim 8, wherein: α and β are 45°.

11. The sight mounting system (300) according to any one of claims 8 to 10, wherein: The rear wall (125) includes a vertical portion (160) extending from the planar mounting surface (130) to an inclined portion (165) of the rear wall (125), and the front wall (135) includes a first vertical portion (170) extending from the planar mounting surface (130) to an inclined portion (175) extending to a second vertical portion (180) of the front wall (135).

12. The sight mounting system (300) of claim 11, wherein: The inclined portion (265) of the front surface (245) of the reflex sight (200) engages the inclined portion (175) of the front wall (135) of the sight mounting interface (110), thereby forming a small gap (316) between a first vertical portion (260) of the front surface (245) of the reflex sight (200) and the first vertical portion (170) of the front wall (135).

13. The sight mounting system (300) according to any one of claims 4 to 12, wherein: When the sight mounting system (300) is assembled, a small gap (317) exists between the flat lower surface (315; 615; 715) of the elongated dovetail member (305; 605; 705) and the mounting surface (130) of the sight mounting interface (110), and a small gap (318) exists between the bottom surface (230) of the reflex sight (200) and the mounting surface (130).

14. A sight mounting system (300; 400) for mounting a sight (200; 500) to a firearm, comprising: a sight mounting interface (110; 410) having an inclined rear wall (125; 425), a flat longitudinal mounting surface (130; 430) and an inclined front wall (135; 435) for receiving the sight (200; 500); An elongated dovetail member (305; 605; 705) having a flat upper surface (310; 610; 710), a flat lower surface (315; 615; 715), a first long side portion (320a; 620a; 720a) and a second long side portion (320b; 620b; 720b), both of the first long side portion and the second long side portion being inclined downwardly and inwardly from the upper surface (310; 610; 710) to the lower surface (315; 615; 715), the upper surface (310; 610; 710) having at least two screw holes (325; 625; 725) for receiving a screw (330) passing through the elongated dovetail member (305; 605; 705) and screwed into a screw hole (145; 445) of the sight mounting interface (110; 410); wherein the elongated dovetail member (305; 605; 705) is arranged to be forced into close contact with the inclined front wall (435) of the sight mounting interface (410) and the inclined front surface (245; 545) of the sight (200; 500), and wherein at least a portion of the inclined rear surface (240; 540) of the reflex sight (200; 500) is forced against at least a portion of the inclined rear wall (425) of the sight mounting interface (410).

15. The sight mounting system (300; 400) of claim 14, wherein: The first long side portion (320a; 620a; 720a) and the second long side portion (320b; 620b; 720b) ​​are inclined inwardly by 30° to 60°.

16. The sight mounting system (300; 400) of claim 14, wherein: The first long side portion (320a; 620a; 720a) and the second long side portion (320b; 620b; 720b) ​​is inclined inwardly by 45°.

17. The sight mounting system (400) of any one of claims 14 to 16, wherein: The sight mounting interface (410) is provided with a longitudinal tenon (440) extending along at least a portion of the longitudinal mounting surface (430) and arranged to engage with a corresponding longitudinal groove (535) centered proximally along the longitudinal direction of the bottom surface (530) of the sight (500), wherein the length and depth of the tenon (440) are arranged to closely match the length and height of the groove (535), and wherein the longitudinal wall surface (480) of the tenon (435) is arranged to engage with the longitudinal inner surface (536) of the groove (535).

18. The sight mounting system (400) of claim 17, wherein the longitudinal wall surface (480) is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (430) of the tenon (440) for engagement with the longitudinal inner surface (536) of the groove (535) inclined inwardly at a certain angle in a direction toward the center of the bottom surface (530) of the sight (500).

19. The sight mounting system (400) of claim 18, wherein: The angle of the tenon (440) and the angle of the groove (535) are 15° to 35°.

20. The sight mounting system (400) of claim 18, wherein: The angle of the tenon (440) and the angle of the groove (535) are 20°.

21. The sight mounting system (400) of any one of claims 14 to 20, wherein: The rear wall (425) is tilted forward at an angle α relative to a normal vector of the mounting surface (430) to mate with the rear surface (240; 540) of the sight (200; 500), and the front wall (435) is tilted forward at an angle β relative to the normal vector of the flat mounting surface (430) to mate with the second long side (320b) of the elongated dovetail member (305).

22. The sight mounting system (400) of claim 21, wherein: α and β are 30° to 60°.

23. The sight mounting system (400) of claim 21, wherein: α and β are 45°.

24. The sight mounting system (400) of any one of claims 21 to 23, wherein: The rear wall (425) includes a first vertical portion of the rear wall, the first vertical portion extending from the flat mounting surface (430) to an inclined portion connecting the second vertical portion of the rear wall (425), and the front wall (435) includes a vertical portion of the front wall, the vertical portion of the front wall extending from the flat mounting surface (430) to the inclined portion of the front wall (435).

25. The sight mounting system (400) of claim 24, wherein: The inclined portion of the rear surface (540) of the reflex sight (500) engages the inclined portion of the rear wall (425) of the sight mounting interface (410), thereby forming a small gap between the first vertical portion of the rear surface (540) of the reflex sight (500) and the first vertical portion of the rear wall (425).

26. The sight mounting system (400) of any one of claims 17 to 25, wherein when the sight mounting system (300) is assembled, a small gap (347) exists between the planar lower surface (315) of the elongated dovetail member (305) and the mounting surface (430), and a small gap (348) exists between the bottom surface (530) of the reflex sight (500) and the mounting surface (430).

27. The sight mounting system (300; 400) according to any one of claims 1 to 26, wherein: The sight mounting interface (110; 410) is arranged on a slide (100) of a firearm, or on another sight to be mounted on a firearm, a light artillery system or a man-portable launcher.

28. The sight mounting system (300; 400) of any one of claims 1 to 27, wherein: The elongated dovetail member (305; 605; 705) is provided with an auxiliary open sight (606, 706), the auxiliary open sight (606, 706) forming: an integral portion of the elongated dovetail member (605); or A removable portion disposed in a sight receiver (707) on a projection (708) of the elongated dovetail member (705).

29. A sight (200) for mounting to a sight mounting interface (110), the sight comprising a housing (205) having a base (226), the base comprising a rear surface (240), a front surface (245), and a bottom surface (230) provided with a longitudinal tenon (235), in, The longitudinal tenon (235) has a longitudinal wall surface (280) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (230) for engaging a corresponding inclined longitudinal inner surface (185) of the groove (140) of the sight mounting interface (110), the front surface (245) is inclined rearwardly to engage the front wall (135) of the sight mounting interface (110), and the rear surface (240) is inclined forwardly to engage an elongated dovetail member (305; 605; 705) which forms a removable attachment element for securing the sight (200) to the sight mounting interface (110).

30. A sight (500) for mounting to a sight mounting interface, the sight comprising a housing (505) having a base (526), ​​the base comprising a rear surface (540), a front surface (545) and a bottom surface (530) provided with a longitudinal groove (535), in, The longitudinal groove (535) has a longitudinal inner surface (536) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (530) for engaging a corresponding inclined longitudinal wall surface of the tenon of the sight mounting interface (410), the front surface (545) is inclined rearwardly to engage the front wall of the sight mounting interface, and the rear surface (540) is inclined forwardly to engage an elongated dovetail member (305; 605; 705) that forms a removable attachment element for securing the sight (500) to the sight mounting interface.

31. A sight (500) for mounting to a sight mounting interface, the sight comprising a housing (505) having a base (526), ​​the base comprising a rear surface (540), a front surface (545) and a bottom surface (530) provided with a longitudinal groove (535), in, The longitudinal groove (535) has a longitudinal inner surface (536) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (530) for engaging a corresponding inclined longitudinal wall surface (448) of the tenon (440) of the sight mounting interface (410), the rear surface (540) is inclined forwardly to engage the rear wall (425) of the sight mounting interface (410), and the front surface (545) is inclined rearwardly to engage an elongated dovetail member (305; 605; 705) that forms a removable attachment element for securing the sight (500) to the sight mounting interface (410).

32. A sight (200) for mounting to a sight mounting interface, the sight comprising a housing (205) having a base (226), the base comprising a rear surface (240), a front surface (245) and a bottom surface (230) provided with a longitudinal tenon (235), in, The longitudinal tenon (235) has a longitudinal wall surface (280) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (230) for engaging a corresponding inclined longitudinal inner surface of a groove of the sight mounting interface, the rear surface (240) is inclined forwardly to engage the rear wall of the sight mounting interface, and the front surface (245) is inclined rearwardly to engage an elongated dovetail member (305; 605; 705) which forms a removable attachment element for securing the sight (200) to the sight mounting interface.

33. The sight (200; 500) according to any one of claims 29 to 32, wherein The angle of the tenon (235; 440) and the angle of the groove (140; 535) are 15° to 35°.

34. The sight (200; 500) according to any one of claims 29 to 32, wherein The angle of the tenon (235; 440) and the angle of the groove (140; 535) are 20°.

35. The sight (200; 500) according to any one of claims 29 to 34, wherein The rear surface (240; 540) is inclined forwardly by 30° to 60° relative to a normal vector of the bottom surface (230; 530), and the front surface (245; 545) is inclined backwardly by 30° to 60° relative to the normal vector of the bottom surface (230; 530).

36. The sight (200; 500) according to any one of claims 29 to 34, wherein The rear surface (240; 540) is inclined forwardly by 45° relative to the normal vector of the bottom surface (230; 530), and the front surface (245; 545) is inclined backwardly by 45° relative to the normal vector of the bottom surface (230; 530).

37. The sight (200; 500) according to any one of claims 29 to 36, wherein The rear surface (240; 540) of the sight (200; 500) is formed in at least two parts, including a vertical portion (250) extending upward from the bottom surface (230) to an inclined portion (255).

38. The sight (200; 500) according to any one of claims 29 to 37, wherein The front surface (245; 545) of the sight forms at least three parts, including a first vertical part (260) extending upward from the bottom surface (230) to an inclined part (265), which further extends to a second vertical part (270).

39. The sight (200; 500) according to any one of claims 29 to 38, wherein The sight (200; 500) is a closed reflex sight having an optical element which is completely enclosed by the housing (205; 505).

40. An adapter plate for mounting a sight to a sight mounting interface (110), the adapter plate comprising a base (226) having a rear surface (240), a front surface (245), a top surface for attachment to the sight and a bottom surface (230) provided with a longitudinal tenon (235), in, The longitudinal tenon (235) has a longitudinal wall surface (280) which is angled inwardly in a direction toward the center of the bottom surface (230) for engaging a correspondingly angled longitudinal inner surface (185) of the recess (140) of the sight mounting interface (110), the front surface (245) is angled rearwardly for engaging a front wall (135) of the sight mounting interface (110), and the rear surface (240) is angled forwardly for engaging an elongated dovetail member (305; 605; 705) forming a removable attachment element for securing the adapter plate to the sight mounting interface (110).

41. An adapter plate for mounting a sight to a sight mounting interface, the adapter plate comprising a base (226) having a rear surface (240), a front surface (245), a top surface and a bottom surface (230) provided with a longitudinal tenon (235), in, The longitudinal tenon (235) has a longitudinal wall surface (280) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (230) for engaging a corresponding inclined longitudinal inner surface of a groove of the sight mounting interface, the rear surface (240) is inclined forwardly to engage the rear wall of the sight mounting interface, and the front surface (245) is inclined rearwardly to engage an elongated dovetail member (305; 605; 705) which forms a removable attachment element for securing the adapter plate to the sight mounting interface.

42. An adapter plate for mounting a sight to a sight mounting interface, the adapter plate comprising a base (526) having a rear surface (540), a front surface (545), a top surface for attachment to the sight and a bottom surface (530) provided with a longitudinal groove (535), in, The longitudinal groove (535) has a longitudinal inner surface (536) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (530) for engaging a corresponding inclined longitudinal wall surface of the tenon of the sight mounting interface (410), the front surface (545) is inclined rearwardly to engage the front wall of the sight mounting interface, and the rear surface (540) is inclined forwardly to engage an elongated dovetail member (305; 605; 705) that forms a removable attachment element for securing the adapter plate (500) to the sight mounting interface.

43. An adapter plate for mounting a sight to a sight mounting interface, the adapter plate comprising a base (526) having a rear surface (540), a front surface (545), a top surface, and a bottom surface (530) provided with a longitudinal groove (535), in, The longitudinal groove (535) has a longitudinal inner surface (536) which is inclined inwardly at a certain angle in a direction toward the center of the bottom surface (530) for engaging a corresponding inclined longitudinal wall surface (480) of the tenon (440) of the sight mounting interface (410), the rear surface (540) is inclined forwardly to engage the rear wall (425) of the sight mounting interface (410), and the front surface (545) is inclined rearwardly to engage an elongated dovetail member (305; 605; 705) that forms a removable attachment element for securing the adapter plate to the sight mounting interface (410).

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