Handgun with low barrel and short sighting rail

Abstract

The invention relates to a handgun (1) comprising a frame (100), a barrel (200), which is mounted in the frame (100) and has a barrel axis (L), and also comprising a striking system (300), a sighting rail (400) and a slide (500), wherein the sighting rail (400) can be locked immovably on the frame (100) in such a way that the barrel axis (L) lies between the frame (100) and the sighting rail (400), and wherein at least part of the striking system (300) is mounted on the sighting rail (400), wherein the slide (500) is displaceable from a rest position into a maximally retracted position, wherein a front side (S1) of the sighting rail (400) lies behind a front side (S2) of the slide (500), as seen in the firing direction of the handgun (1).

Description

[0001] Handgun with low-profile barrel and short sight rail

[0002] The invention relates to a handgun comprising a grip, a barrel mounted in the grip with a barrel axis and a muzzle, a firing mechanism, a sight rail and a slide slidably mounted on the grip, wherein the sight rail can be locked immovably on the grip such that the barrel axis lies between the grip and the sight rail, wherein at least a part of the firing mechanism is mounted on the sight rail, and wherein the slide is slidable from a rest position to a maximally retracted position.

[0003] With this type of handgun, the barrel can be designed to be particularly low, as elements of the firing mechanism, especially the trigger bar and hammer, are mounted on the sight rail above the barrel. Handguns with a low bore axis, combined with low bolt mass, minimize muzzle rise, resulting in pleasant and controllable shooting characteristics. These features contribute significantly to speed and accuracy during rapid fire, which is particularly advantageous in dynamic IPSC shooting, where precision and rapid firing are crucial.

[0004] A handgun of this type with a low-profile barrel is known, for example, from EP3472549B1. A corresponding handgun is marketed under the name Laugo Arms Alien. This pistol, described in EP3472549B1, is distinguished by its novel design, in which the bolt and slide are separate from the sights. This immobility of the sights during firing helps to better protect them from mechanical stress, as they are not subjected to the usual recoil forces acting on the bolt. Additionally, the gas-operated system of the Laugo Arms Alien provides a smoother recoil and reduces mechanical stress on the entire firing mechanism, thus extending the weapon's lifespan and increasing accuracy.

[0005] The sight rail on the EP3472549B1 handgun is designed to wrap around the front of the barrel and extend over the entire length of the pistol, above the slide. To accommodate this sight rail and the gas-operated system, a corresponding mounting block must protrude from the frame. This mounting block also supports the recoil spring, which is located between the mounting block and the slide. While the EP3472549B1 handgun offers numerous advantages, it also has some drawbacks. For example, the gas-operated system leads to rapid fouling of the pistol.While the fixed sight mounting offers advantages for many applications, it is not permitted in some competitions or is undesirable for the user in certain situations. Therefore, if a sight that moves with the slide is desired, either the entire pistol or at least the slide and sight rail must be replaced. The mounting block also increases the design complexity and thus the manufacturing costs, making this handgun relatively expensive.

[0006] The purpose of the invention is therefore to overcome at least some of the aforementioned disadvantages and to provide an improved handgun with a deep barrel.

[0007] This problem is solved by a handgun comprising a grip, a barrel mounted in the grip with a barrel axis and a muzzle, a firing mechanism, a sight rail and a slide, wherein the sight rail can be locked immovably to the grip such that the barrel axis lies between the grip and the sight rail, wherein at least a part of the firing mechanism is mounted on the sight rail, wherein the slide is movable from a rest position to a maximally retracted position, wherein a front side of the sight rail lies behind a front side of the slide, as seen in the firing direction of the handgun.

[0008] According to the invention, a new type of sight rail is provided, which offers completely novel application possibilities compared to the sight rail of EP3472549B1. In particular, the sight rail no longer needs to project directly above the barrel, so that the space directly above the barrel or above the front section of the barrel can be made available solely to the slide. This allows this area, for example, to be used for the recoil spring, which can now extend between the sight rail and the slide, or for a front sight to be supported by the slide at the front of the handgun, which is considered advantageous by many users. Furthermore, a rotating barrel system can be implemented in this area. However, it should be emphasized that it is not necessary to implement all of these advantageous modifications to realize the invention.The novel sight rail, however, allows for these modifications to be implemented as desired, since more installation space is available at the front end of the handgun. For the sake of completeness, it should be mentioned that this sight rail could be used with a rotating barrel locking system described below or with a gas-operated system as used in the EP3472549B1.

[0009] As described above, the front of the sight rail is located behind the front of the slide, viewed in the firing direction of the handgun. This saves space, as the fixed sight rail does not occupy the foremost area of ​​the handgun.

[0010] If the slide also has a front section that, viewed in the direction of fire, lies in front of the sight rail (i.e., which would collide with the sight rail if the slide were to retract indefinitely), the front edge of the sight rail is generally positioned behind an inner surface of the front section of the slide, specifically at a distance corresponding to the offset between the resting position and the fully retracted position of the slide. The front section is, for example, a front wall that is substantially perpendicular to the bore axis. This creates an exposed space between this front section of the slide and the sight rail, which can be used for various purposes.

[0011] In a particularly preferred embodiment, the sight rail is at least partially covered by the slide on the upper side of the handgun facing away from the grip when at rest (e.g., at least in the slide's rest position). The slide has a recess on its upper surface through which a portion of the sight rail passes. This leaves a portion of the sight rail permanently exposed, allowing a sight to be mounted on the rail. During firing, the sight rail remains statically positioned on the rail and thus also statically aligned with the grip. Simultaneously, a portion of the sight rail is also covered by the slide, enabling the mounting of a front sight, such as a front sight, on this covered portion, a feature desired by many users.This allows for the implementation of a hybrid sight with a part that is static during a shot and a part that moves during the shot.

[0012] In the aforementioned embodiment, it is further preferred if the recess in the direction of the running axis has a length x3 that essentially corresponds to the length of the aforementioned part of the sight rail xl plus the distance x2 between the rest position and the fully retracted position, i.e., xl + x2 = x3. This allows the recess to be kept as small as possible, thus providing more installation space on the slide.

[0013] Typically, the aforementioned recess is configured such that the slide covers the sight rail in front of and behind the section protruding from the slide, allowing components to be mounted on top of the slide in front of and behind the recess. However, this is not mandatory, for example, if the slide consists only of side walls in front of or behind the recess and the sight rail is not covered by the slide in that area.

[0014] It is usually intended that the sight rail is shorter than the slide, measured in a direction parallel to the bore axis. However, this is not mandatory, for example, if the slide does not overlap the sight rail laterally or from above at its rear end.

[0015] As already mentioned, the sight rail according to the invention allows a recoil spring located above the barrel to be positioned between the sight rail and the slide, thus pre-tensioning the slide into its rest position. This enables a special arrangement of the recoil spring, which, among other things, simplifies the assembly of the handgun, since the sight rail and the slide can be pre-assembled with the recoil spring before this combination is placed on the grip.

[0016] Many different design options can be used to mount the sight rail to the grip. It is particularly advantageous if the sight rail has at least one primary support strut that projects from a section of the sight rail on one side of the bore axis and can be locked to the grip. Since the support strut extends into the grip, elements can be incorporated into the grip to secure the support strut in place.

[0017] Preferably, the handgun comprises a mounting bolt that can be inserted into the grip for locking the support strut(s), wherein the first support strut has a curvature corresponding to the mounting bolt on the side facing the mounting bolt, and wherein the mounting bolt prevents the sight rail from being displaced in a direction parallel to the barrel axis when the mounting bolt is in a first position in the grip.

[0018] In the simplest case, the mounting bolt could be inserted into the grip frame so that it occupies the first position, and then removed from the grip frame to release the sight rail. However, removing the mounting bolt is not always desirable, as this increases the number of loose parts.It is therefore preferably provided that the mounting bolt has at least one first groove having a width that is at least equal to the width of the first support strut, and wherein the mounting bolt can be moved within the handle from the first position to a second position, wherein the first groove extends at a distance from the first support strut (measured in a direction parallel to the extension direction of the mounting bolt) when the mounting bolt is in the first position to lock the sight rail, and wherein the first groove extends in alignment with the first support strut when the mounting bolt is in the second position to release a locking of the sight rail.

[0019] If the mounting bolt protrudes from both sides of the grip, it could be manually moved from the first position to the second position and back again. However, it is preferred that the mounting bolt is pre-tensioned into the first position by means of a spring, wherein the mounting bolt has a chamfer extending from the first groove in a direction perpendicular to the bore axis, and the first support strut has a correspondingly opposing chamfer, wherein the chamfers are designed such that the sight rail can be moved parallel to the bore axis when the sight rail is inserted into the grip, while the mounting bolt moves from the first position to the second position due to the chamfers, until the sight rail is in a mounting state at which the mounting bolt is moved back to the first position by the spring.This means the sight rail only needs to be inserted into the grip frame in front of the mounting bolt and pushed back. The mounting bolt then automatically moves from the first position to the second position until the sight rail is in the correct mounting position. At this point, the mounting bolt will snap back into place due to spring force, locking the sight rail in place.

[0020] To facilitate locking the sight rail using the mounting bolt, it is preferred that the first support strut comprises a front lower end and a rear lower end, between which the curvature corresponding to the mounting bolt extends. This allows the support struts to be placed on the mounting bolt and locked in place. Alternatively, the support struts could include holes into which the mounting bolt is inserted. To further facilitate alignment of the sight rail during locking, the front lower end (in the direction of fire) can also be provided to be longer than the rear lower end (in the direction of fire). In the simplest case, only one support strut is provided for locking.Preferably, the sight rail further comprises a second support strut, which is preferably identical to the first support strut, wherein the first and second support struts project from the body of the sight rail on opposite sides of the bore axis and are connectable to the grip. Preferably, the mounting bolt may further comprise a second groove, which has a width at least equal to the width of the second support strut, wherein the second groove is spaced apart from the second support strut when the mounting bolt is in the first position to lock the sight rail, and wherein the second groove is aligned with the second support strut when the mounting bolt is in the second position to release the sight rail.

[0021] The support struts form the first mounting elements of the sight rail on the grip and are primarily used to manually lock and unlock the sight rail to the grip. Furthermore, second and / or third mounting elements can be provided, creating additional connection points between the sight rail and the grip.

[0022] The second mounting elements can be formed by at least a first L-shaped groove or recess on a side surface of the sight rail, into which an element, in particular a leg of an L-shaped or T-shaped projection, of the handle engages to lock the sight rail.

[0023] The third mounting elements can connect the sight rail to the grip frame on the side facing away from the muzzle. For example, the grip frame can have a T-shaped groove into which a T-shaped projection of the sight rail engages.

[0024] The sight rail according to the invention can also be used to implement a screen on the rear of the handgun. In particular, the sight rail can have a surface on its rearward side (in the direction of fire) that is substantially perpendicular to the bore axis, in which the screen can be integrated. However, the static rear side of the sight rail could also be used for other purposes, e.g., to implement other displays. If the handgun has a screen, it can further comprise at least one sensor, wherein the handgun is configured to display measurement data from the sensor or data derived from measurement data from the sensor on the screen.

[0025] The inventive design of the sight rail further enables the slide to be guided in the grip frame on its frontmost side (in the direction of firing) when at rest. Specifically, a frontal guide for the slide can be mounted in a guide in the grip frame. Preferably, the frontal guide can be permanently mounted in the grip frame guide on at least one side, i.e., in the entire range between the rest position and the fully retracted position of the slide. However, as described below, the grip frame guide can also be interrupted, at least on one side, to implement a rotary locking system.

[0026] As previously explained, the handgun could be designed as a gas-operated firearm. Preferably, however, the handgun is designed with a rotating barrel locking system. To implement this, the barrel has a control lug, a guide lug, and at least one locking lug, wherein the grip frame has a control cam for the control lug, the control cam being designed such that the barrel can be moved from a first position, which the barrel assumes in the rest position of the slide, to a second position, wherein in the second position the barrel is rotated relative to the first position and offset along the barrel axis, wherein the slide has a locking body, wherein the locking lug is received in the locking body when the slide is in the rest position, and the locking lug is located outside the locking body when the barrel is in the second position.and wherein the slide further comprises a frontal guide located above the guide lug, which prevents rotation of the barrel when the barrel is in the second position. The locking lug(s) ensure that the barrel is driven by the slide at the start of firing. The control lug in the control cam causes the barrel to rotate as it is driven by the slide until it reaches the second position. At this point, the barrel is disengaged from the slide because the locking lugs have moved out of a locking element of the slide due to the rotation. The guide lug, in combination with the frontal guide of the slide, prevents the barrel from rotating back after it has reached the second position. Particularly preferably, the frontal guide is guided in a guide in the grip frame when the slide is in the rest position.and wherein the guide is preferably located in the grip on both sides of the barrel and has a recess only on one side in which the guide lug is received when the barrel is in the second position. This represents a particularly efficient embodiment for locking the guide lug to the slide, since the frontal guide can initially be guided on the grip to ensure stability at the start of firing, and afterwards the guide lug can be locked with the same element that previously served as the guide.

[0027] Preferably, the firing system can comprise a trigger and a breaker lever pivotably mounted in the trigger, wherein the breaker lever includes a lever arm and a bearing pin integrally formed therein, and wherein the bearing pin is received in at least one recess of the trigger and the breaker lever is permanently mounted in the trigger. This significantly simplifies the manufacture of the trigger system, as only two components are required: the trigger and the breaker lever, which can be manufactured in a single operation, e.g., using a 3D printing process such as laser sintering. In contrast, prior art required three components: a trigger with a hole, a breaker lever with a hole, and a bolt that passes through said holes.However, the aforementioned extraction system significantly simplifies manufacturing, leading to savings, especially in small-batch production.

[0028] The firing system can also include a breaker bolt slidably mounted in the slide, a trigger bar pivotally mounted on the sight rail, and a hammer pivotally mounted on the sight rail and connected to the trigger bar.

[0029] To better understand the present invention, the accompanying figures are described in more detail below. These figures illustrate exemplary embodiments of the handgun according to the invention and show the essential features and components that contribute to achieving the desired advantages. The following figures are intended to supplement the description of the invention and facilitate understanding of the technical details and the operating principle. However, the figures only show preferred embodiments and should therefore not be considered limiting.

[0030] It should be noted in particular that this is a "best mode" version and, for example, it is not necessary to implement the rotary locking system or the one-piece manufactured trigger system.

[0031] Figure 1 shows a handgun according to the present invention in a schematic perspective view, wherein the pistol is in a locked state.

[0032] Figure 2 shows the handgun of Figure 1, with the pistol in an unlocked state.

[0033] Figure 3 shows the handgun of Figure 1, with the barrel in a twist-proof state.

[0034] Figure 4 shows the handgun of Figure 1, with the slide in a fully retracted position.

[0035] Figure 5 shows the grip of the handgun in a schematic perspective view.

[0036] Figure 6 shows a side view of the sight rail of a handgun.

[0037] Figure 7 shows a side view of the slide of the handgun.

[0038] Figure 8 shows the slide with the sight rail mounted in it in a side view.

[0039] Figure 9 shows the assembly of the slide and the sight rail in a sectional view.

[0040] Figure 10 shows the sight rail mounted in the slide with other components of the handgun.

[0041] Figures 1a and 11b show a mounting bolt for the handgun, the mounting bolt being designed for left-handed use.

[0042] Figures 12a and 12b show a mounting bolt for the handgun, the mounting bolt being designed for right-handed use.

[0043] Figures 13a and 13b show the locking of the sight rail in the grip using the mounting bolt.

[0044] Figure 14 shows the insertion of the support struts of the sight rail into the mounting bolt in a schematic top view.

[0045] Figure 15 shows the rear end of the handgun in a schematic perspective view.

[0046] Figure 16 shows the barrel of the handgun in a schematic side view.

[0047] Figure 17 shows the barrel of the handgun in a schematic perspective view.

[0048] Figure 18 shows the grip with the barrel contained therein in a perspective view, with elements of the barrel shown in both an unlocked position and a locked position.

[0049] Figure 19 shows a schematic sectional view along the section surface AA of Figure 18. Figure 20 shows the front end of the handgun in a schematic perspective view with the slide at rest.

[0050] Figure 21 shows the handgun in an intermediate position of the slide in a section through a vertical plane in which the barrel axis lies.

[0051] Figure 22 shows the handgun in an intermediate position of the slide in a section normal to the barrel axis.

[0052] Figures 23a to 23d show various sectional views of the handgun in a resting position of the slide.

[0053] Figures 24a to 24d show various sectional views of the handgun in an intermediate state of the slide shortly before the locking lugs are released.

[0054] Figures 25a to 25d show various sectional views of the handgun in an intermediate state of the slide shortly after the locking lugs have been released.

[0055] Figures 26a to 26d show various sectional views of the handgun in a fully retracted position of the slide.

[0056] Figure 27 shows the firing mechanism of the handgun before a shot is fired.

[0057] Figure 28 shows the firing mechanism of the handgun after a shot has been fired with the trigger pressed.

[0058] Figure 29 shows the interrupter lever of the striking mechanism in a perspective view. Figure 30 shows the interrupter lever of the striking mechanism in a side view. Figure 31 shows the interrupter lever of the striking mechanism in a sectional view.

[0059] Figure 1 shows a handgun 1, or pistol, which is particularly suitable for IPSC shooting. This handgun 1 could also be used for other purposes. Likewise, the components of this handgun 1 described below could be used in other handguns.

[0060] The handgun 1 comprises a grip 100, a barrel 200, a firing mechanism 300, a sight rail 400, and a slide 500. The handgun 1 may include additional elements such as a mounting bolt 600, one or more sights such as a front sight 701, a rear sight 702, or an optical sight 703, or other components described below.

[0061] What is special about this handgun 1 is that it has a low bore axis L (referring to the central axis of the barrel 200) and a low breechblock mass in order to minimize muzzle rise, thus enabling pleasant and controllable firing characteristics. It should be noted that this handgun 1 defines a firing direction when used as intended. However, it is understood that the firing direction of the handgun 1 is also clearly defined when no shot is fired or even when some components of the handgun 1 have been disassembled. The firing direction is therefore also an inherent characteristic of the grip 100, the barrel 200, the firing mechanism 300, the sight rail 400, and the slide 500.The terms "front," "rear," "top," "bottom," "left," and "right," and variations thereof, used herein, are defined by the direction of fire and are to be read in relation to the handgun 1 in its intended use. It is likewise noted that, due to the design of the handgun 1, the bore axis L is not only a feature of the barrel 400 itself, but a feature of the entire handgun 1 and its individual components in their intended use. Herein, "in the direction of the bore axis" also means "parallel to the bore axis," unless otherwise specified.

[0062] The grip 100, shown in Figure 5, is generally made of plastic and / or metal and is the element that houses the trigger 301 of the firing system 300 and is gripped by the user to operate the handgun 1, i.e., to fire a shot. A magazine 710 can be inserted into the underside 101 of the grip 100. The grip 100 may also have an optional grip panel 102. As can be seen particularly in Figure 5, the grip 100 has a flat cut surface, with only mounting elements having a projection 103 protruding from the cut surface. These elements are used to attach the sight rail 400 to the grip 100. It is particularly preferred that exactly two mounting elements protrude from the cut surface, serving to lock the sight rail 400 in place. However, it is understood that other designs are also possible.

[0063] The barrel 200 is typically a forged barrel, optionally machined, which in the illustrated embodiment is designed to implement a rotating barrel locking system. A rotating barrel locking system is understood to be a mechanical locking mechanism that connects the barrel 200 and the slide 500 in such a way that they move together during firing until the gas pressure in the barrel 200 has dropped to a safe level. This is particularly evident from the sequence of Figures 1 to 4. In Figure 1, the slide 500 is in a rest position, i.e., the handgun 1 is locked, and the barrel 200 is also in a forward (first) position. In Figure 2, the handgun 1 is unlocked, and the slide 500 is in an intermediate position. It is evident that the barrel 200 has moved rearward relative to its forward position in Figure 1.The barrel 200 is in a rearward (second) position and cannot be moved further back, as can be seen in Figure 3, since the barrel 200 remains in the same position while the carriage 500 has moved further back. As can be seen in Figure 4, the carriage 500 can move further back until it is in its fully retracted position, while the barrel 200 remains in the position shown in Figures 2 and 3. The mechanical implementation of this is illustrated below with reference to Figures 16 to 26d.

[0064] However, it should be emphasized that the handgun 1 does not necessarily have to be implemented with a rotating barrel locking system, but a tilting block system, a blowback system or a gas-operated system could also be used, whereby the barrel can be either static or movable during firing, depending on the system.

[0065] As already mentioned, the handgun 1 is to have a low bore axis L. This is achieved by positioning the firing mechanism 300 at least partially above the bore axis L. To implement this, the sight rail 400 shown in Figure 6 is used, which can be locked immovably in the grip 100. In other words, the sight rail 400 can be attached to the grip 100, and the sight rail 400 does not move relative to the grip 100 during firing. The sight rail 400 can also be removed from the grip 100 to disassemble the handgun 1.

[0066] The sight rail 400 is to be mounted on the grip 100 in such a way that the bore axis L lies between the grip 100 and the sight rail 400. This allows parts of the firing mechanism 300 to be mounted above the barrel 200 and the bore axis L to be moved further downwards. Consequently, a hammer 305 of the firing mechanism 300, in a cocked position, can be located essentially above the barrel 200 and pivot downwards at one end when a shot is fired.

[0067] The slide 500 shown in Figure 7 is slidably mounted on the grip 100 and at least partially encompasses the sight rail 400, for example, also from above. The slide 500 comprises the bolt 501, which closes the barrel 200 in the slide 500's rest position. The bolt 501 is penetrated by a firing pin channel 502 in which the firing pin 503 shown in Figure 10 is inserted. The bolt 501 can include an extractor in a known manner, which grips a sleeve for ejection at its edge. The slide 500 is supported on both the grip 100 and the sight rail 400. In particular, the slide 500 comprises two frontal guides 511 at its front end, each of which engages in a guide 111 at the front end of the grip 100 (compare Figure 2).The sight rail 400 has guide receptacles 420 on two opposing side surfaces at its rear end, into which corresponding guide elements of the slide can engage. It is understood that other types of guides are possible.

[0068] In the illustrated variant, it is particularly noteworthy that a front side S1 of the sight rail 400 lies behind a front side S3 of the slide 500, as seen in the firing direction of the handgun 1. This is shown in Figure 10. In other words, in its rest position, the slide 500 is closer to the muzzle (i.e., the end of the barrel 200 that is forward in the firing direction) than the sight rail 400. Thus, there is a distance a between the front side S1 of the sight rail 400 and an inner side S3 of the front section of the slide 500. This distance a corresponds at least or substantially to the offset between the rest position of the slide 500 and its fully retracted position. This area between the front side S1 of the

[0069] The sight rail 400 and an inner side S3 of the front section of the slide 500 is usually covered by the slide 500, e.g. from the side as well as from above.

[0070] Overall, the sight rail 400 can therefore also be shorter than the slide 500, i.e., in the assembled state of the handgun 1, the slide 500 extends a greater length of the barrel 200 than the sight rail 400 along the direction of the barrel axis L.

[0071] It is particularly evident from Figures 1 to 4 that the slide 500 has a section 504 at its front end with a curvature adapted to the shape of the barrel 200. This allows the slide 500 to slide directly over or rest directly over the barrel 200 at its front end. It is also evident that the grip 100 has a section 101 with a curvature in which the barrel 200 rests. The curved section 101 of the grip 100 and the curved section of the slide 500 together form a recess that fits the barrel 200 precisely.

[0072] The combination of sight rail 400 and slide 500 described herein creates several new possibilities for improving the handgun 1. For example, as shown in Figure 10, a recoil spring 505 can be provided which extends between the sight rail 400 and the slide 500. This differs from conventional embodiments such as EP3472549B1, where the recoil spring is located between the slide and the frame.

[0073] In the embodiment shown in Fig. 6, the sight rail 400 comprises a front section 410, a middle section 411, and a rear section 430, which are integrally joined to one another. In other variants, however, the front section 410, the middle section 411, and the rear section 430 could also be realized by different components and, for example, be screwed together.

[0074] The front section 410 optionally includes a spring body, which forms a recess into which the closing spring 505 can be inserted. The front section of the slide 500 has an application point 506 for the closing spring 505. Thus, the closing spring 505 extends between the spring body and the application point 506 in the slide 500.

[0075] The sight rail 400 also has a central section 411, which includes a sight receptacle 412 on its upper surface. The sight receptacle 412 is exposed on its upper surface, regardless of whether the slide 500 is in the rest position, in the fully retracted position, or in any position between the rest position and the fully retracted position.

[0076] Likewise, in the assembled state of the handgun 1, the slide 500 covers the sight rail 400 above the sight rail 400 in an area located behind the aforementioned sight mount 412 of the sight rail 400 in the direction of fire. A sight mount 512 is located on the slide in this area. Depending on the user's preference, a sight can be mounted either on the sight rail 400, which is stationary during firing, or on the slide 500, which moves during firing.

[0077] Figures 1 to 4 show that the handgun 1 can have a front sight 701 on a front section of the slide 500, a rear sight 702 on a rear section of the slide 500, and an optical sight 703 on the sight rail 400. It is understood that other variants can be used. For example, regardless of whether a front sight 701 is used, in a first option a rear sight 702 can be provided on the rear section of the slide 500 and no sight on the sight rail 400, in a second option a rear sight 702 on the sight rail 400 and no sight on the rear section of the slide 500, in a third option a rear sight 702 on the rear section of the slide 500 and an optical sight 703 on the sight rail 400, or in a fourth option an optical sight 703 on the rear section of the slide 500 and a rear sight 702 on the sight rail 400.The rear section of the slide 500 refers to the upper section of the slide 500 that lies behind the sight rail 400, and the front section of the slide 500 refers to the upper section of the slide 500 that lies in front of the sight rail 400.

[0078] The sights 701, 702, and 703 can be manufactured in one piece or in multiple pieces. As can be seen in Figure 10, the rear sight 702 can comprise a mounting plate 704 and a rear sight attachment 705 mounted on the mounting plate 704. Alternatively, the rear sight 702 could also be manufactured in one piece. The same applies to the front sight 701 and the optical sight 703.

[0079] Regarding the sight mounts 412, 512, it should also be noted that these can have one mounting hole (Figure 10), two mounting holes (Figure 9) or more than two mounting holes in which the sights 701, 702, 703 can be fixed.

[0080] It should be noted that, in an assembled state of the handgun 1, the slide 500 can also cover the sight rail 400 above the sight rail 400 in an area that lies in front of the aforementioned sight receptacle 412 of the sight rail 400 in the direction of fire. In this area, the slide 500 can include a receptacle 507 for a front sight 508, as shown in Figures 9 and 10. In this preferred embodiment, the slide 500 therefore has an upper recess with a length x3 that corresponds at least to the length xl of the portion of the upper section of the sight rail 400 projecting upwards, plus the offset length x2 between the rest position and the fully retracted position, as shown in Figure 4. However, the slide could also cover the sight rail 400 only in front of or behind the sight receptacle 412.

[0081] In the central section 411 of the sight rail 400, mounting elements 413 for the firing system 300 are also provided. Specifically, the trigger bar 304 and the hammer 305 are mounted on the central section 411.

[0082] At the rear section 430 of the sight rail 400, there is a surface 414 that is essentially perpendicular to the bore axis L. A screen can be mounted on this surface 414, which can display information to the user. The screen can, for example, be connected to a sensor, and the screen can display measurement data from the sensor or data derived from the sensor's measurement data. For example, the sensor can indicate whether the handgun 1 is ready to fire, e.g., by detecting whether a cartridge is in the barrel 200 and the slide 500 is in the rest position. Furthermore, the sensor could detect the temperature of the handgun 1, and the temperature could be displayed on the screen, or it could be deduced from the temperature whether the handgun 1 is overheating, which could also be displayed on the screen.Furthermore, the sensor could detect the number of cartridges remaining in the magazine, which could be displayed on the screen.

[0083] To assemble the handgun 1, the grip 100, the barrel 200, the sight rail 400, and the slide 500 are first provided. The components of the firing mechanism 300 are already mounted on the grip 100, in the sight rail 400, and in the slide 500. The barrel 200 is inserted into the grip 100, specifically into the curved front section 101 of the grip 100. As shown in Figure 9, the sight rail 400 and the slide 500 are then joined together. In the illustrated version, it can also be said that the sight rail 400 is inserted into the slide 500. This results in the combination of sight rail 400 and slide 500 shown in Figures 8 to 10. This combination of sight rail 400 and slide 500 can subsequently be mounted on the grip frame 100 with barrel 200 to obtain the compound handgun 1.

[0084] The sight rail 400 is connected to the grip 100 as follows. The sight rail 400 has two support struts 401 that project downwards from a body of the sight rail 400. This allows the support struts 401 to extend into the grip 100 and be connected to it. Typically, two support struts 401 are used, inserted into the grip 100 on either side of the barrel axis L, and in the assembled state of the handgun 1, they surround the barrel 200 on the left and right. In other cases, however, only one support strut 401 may be used.

[0085] The support struts 401 can be connected to the handle 100, for example, by means of a mounting bolt 600. The handle 100 can have a recess into which the mounting bolt 600 is inserted, as shown in Figures 1 to 4. The support struts 401 have a curvature corresponding to the mounting bolt 600 on the side facing the mounting bolt 600 (i.e., on the side facing away from the body of the sight rail 400). If the mounting bolt 600 fits precisely within this curvature, this prevents the sight rail 400 from shifting forward and / or backward, depending on the curvature. If the curvature is only a quarter circle (or generally a continuously increasing or decreasing curvature), this prevents movement in one direction.However, if the curvature is a semicircle (or, more generally, a curvature that is both rising and falling with a maximum between the outermost points, as shown in Figure 6), this prevents displacement both forwards and backwards. In summary, the mounting bolt 600 prevents the sight rail 400 from being displaced in at least one direction parallel to the bore axis L when the mounting bolt 600 is located in the grip 100.

[0086] In general, the mounting bolt 600 could be inserted into and removed from the grip 100. In this configuration, the mounting bolt 600 would be in a first position, locking the sight rail 400 when inserted into the grip 100, and releasing the sight rail 400 when removed. However, as described below, a variant can also be implemented in which the mounting bolt 600 does not need to be removed from the grip 100 to release the sight rail 400.

[0087] As shown in Figures 11a and 11b, the mounting bolt 600 can essentially have two first grooves 601 extending parallel to the bore axis L. The grooves 601 are each as wide as, or wider than, the support struts 401. The mounting bolt 600 can be positioned within the grip 100 in two different positions, with the mounting bolt 600 locking the sight rail 400 in a first position (Figure 13b) and releasing it in a second position (Figure 13a). In the first position, the grooves 601 are not aligned with the support struts 401; that is, the grooves 601 are located in a direction perpendicular to the bore axis L at a distance from the support struts 401, whereby the cylindrical body of the mounting bolt 600 prevents the support struts 401 from moving forward or backward.to move backwards, since the curvature of the support struts 401 is located precisely above the mounting bolt 600, or since the support struts 401 are not yet located above the mounting bolt 600 and the aforementioned curvature prevents the support struts 401 from being moved over the mounting bolt 600.

[0088] However, if the grooves 601 are aligned with the support struts 401, the support struts 401 are not blocked by the cylindrical body of the mounting bolt 600, allowing the support struts 401 to pass the mounting bolt 600 thanks to the grooves 601. Preferably, the curvature of the support struts 401 is such that the front end 431 of the support struts 401 is lower than the rear end 432. The rear end 432 is designed to be deep enough to slide over the grooves 601 when the mounting bolt is in the second position. Since the front end 431 is lower than the rear end 432, the front end 431 can define a stop for the support struts 401 at the mounting bolt 600 when the sight rail 400 is in a mounting position. The front ends 431 thus prevent the sight rail 400 from being inserted too far into the grip 100.

[0089] In the simplest case, the mounting bolt 600 could protrude so far on both sides from the handle 100 that it can be manually moved from the first position to the second position by pushing from the left or right.

[0090] Preferred variants, however, provide that the mounting bolt 600 is pre-tensioned into the first position by means of a spring mechanism. The spring mechanism can be implemented, for example, by a spring wire 602 connected to the body of the mounting bolt 600. Starting from the body of the mounting bolt 600, the spring wire 602 initially runs essentially parallel to the axis of travel L, but is then curved in a direction perpendicular to the axis of travel L in order to pre-tension the mounting bolt 600 into the first position.

[0091] Furthermore, a mechanism can be provided to automatically move the mounting bolt 600 into the second position when the sight rail 400 is to be locked in the grip 100. For this purpose, the mounting bolt 600 has chamfers 603 to widen the grooves 601 at the front. The support struts 401 can each have a corresponding chamfer 409 on their rear side. As shown in Figure 14, the support struts 401 can also have two chamfers 409 on their rear side, one on the left rear side and one on the right rear side. This allows the mounting bolt 600 for right-handed users to be interchanged with a mounting bolt 600 for left-handed users, as explained in more detail below.

[0092] When the support struts 401 are moved into their initial position, as shown in Figure 13a, i.e., in front of the mounting bolt 600, it is possible to move the sight rail 400 rearward. Due to the chamfers 603, the mounting bolt 600 will move from the first position to the second position against the spring force, allowing the support struts 401 to be moved through the grooves 601 until they are positioned directly above the mounting bolt 600, i.e., the sight rail 400 is in a mounted position. At this point, the spring action will automatically return the mounting bolt 600 to its first position, and the sight rail 400 will be locked in the grip, as shown in Figure 13b. While Figures 11a and 11b show the mounting bolt 600 in an embodiment for left-handed users, Figures 12a and 12b show the mounting bolt 600 in a version for right-handed users.The difference is that the spring wire 602 is pre-tensioned in a different direction and the chamfers are located on different sides of the grooves 601. If the handle 100 has a Y-shaped receptacle 105 for the spring wire 602, the same handle 100 can be used with both the mounting bolt 600 for right-handed users and the mounting bolt 600 for left-handed users, since the spring wire 602 can be inserted into a different leg of the Y-shaped receptacle 105 in each case.

[0093] Figures 1a and 11b further show that the mounting bolt 600 has a central notch 604 for the barrel 200. This allows the barrel 200 to be partially inserted through the mounting bolt 600, thereby lowering the barrel axis L further. However, this is purely optional. Furthermore, the mounting bolt 600 can have a handle 605 on one side, which is recessed in the grip 100 when the mounting bolt 600 is in its first position. This allows the mounting bolt 600 to be pushed from the side opposite the handle 605 and then pulled from the side of the handle 605 to move the mounting bolt 600 into its second position. Since pushing alone is insufficient to move the mounting bolt 600 into its second position, two-handed operation of the mounting bolt 600 is required.

[0094] Dismantling the 400 sight rail, which prevents unintentional removal of the 400 sight rail.

[0095] As shown in Figures 13a and 13b, the sight rail 400 can have, in addition to the support struts 401, second mounting elements, which can be formed, for example, by L-shaped grooves or recesses 402. A first leg of the L-shaped groove or recess 402 extends upwards from the lower end of a side wall of the body of the sight rail 400, and the second leg of the L-shaped groove or recess 402 extends forwards from the upper end of the first leg. The handle 100, in turn, has an L-shaped or T-shaped projection 103 with a leg that can be inserted into the L-shaped groove or recess. In the aforementioned initial state, the projection 103 is inserted into the first leg of the L-shaped groove or recess 402 until it is located at the upper end of the first leg (or at the rear end of the second leg) of the L-shaped groove or recess 402 of the sight rail 400, see Figure 13a.If the sight rail 400 is now moved backwards into the assembly position, the leg of the projection 103 is located in the front end of the second leg of the L-shaped groove or recess 402 of the sight rail 400, see Figure 13b.

[0096] As shown in Figure 15, the sight rail 400 optionally has a third mounting element, which is formed, for example, by a T-shaped projection 406 on the rear side of the sight rail 400. The T-shaped projection 406 can be inserted into a T-shaped groove 106 of the handle 100. In the aforementioned initial state, the T-shaped projection 406 is located in front of the T-shaped groove 106. After the sight rail 400 is pushed back into the mounted position, the T-shaped projection 406 lies in the T-shaped groove 106.

[0097] In summary, the illustrated handgun 1 has three mounting points where the sight rail 400 is connected to the grip 100: the support struts 401 (i.e., first mounting elements), the second mounting elements, and the third mounting elements. In the assembled state, where the sight rail 400 is locked in the grip 100, the support struts 401 and the mounting bolt 600 prevent the sight rail 400 from moving forward or backward, the second mounting elements prevent the sight rail 400 from moving backward or upward, and the third mounting elements prevent the sight rail 400 from moving upward. The support struts 401 are typically the foremost mounting elements. In the direction of fire, the second mounting elements are located between the first and third mounting elements. However, in other cases, only two mounting elements might be used, e.g.,the first assembly elements and the second assembly elements, or the first assembly elements and the third assembly elements.

[0098] The details of the rotary locking system are described below with reference to Figures 16 to 26d. Figures 16 and 17 show that the barrel 200 has a substantially cylindrical body 201, a control lug 202, a guide lug 203, and two locking lugs 204. However, the barrel 200 could also have only one locking lug 204 or more than two. If two or more locking lugs 204 are used, they are located substantially along a line parallel to the barrel axis L. The locking lugs 204 are located at the rear end of the barrel 200, specifically in the rear third of the barrel 200. The control lug 202 and the guide lug 203 are located in the front half of the barrel 200. For the purposes described below, the guide lug 203 typically has a chamfer 205 at its front end.Viewed in the direction of firing, the control lug 202 is located at a 6 o'clock position, the guide lug 203 at a 3 o'clock position, and the locking lugs 204 at a 12 o'clock position, each in a rest position of the slide 500. These orientations may be subject to an angular offset, e.g., of + / - 10% or + / - 20%. In other words, the control lug 202 is located in a 180° + / - 20° position and the guide lug 203 in a 90° + / - 20° position or a 270° + / - 20° position when at least one locking lug 204 is in a 0° position, viewed in the direction of the barrel axis L.

[0099] The control lug 202 is guided in a control cam 110 in the grip 100. This allows the barrel 200 to be moved from a first position, which the barrel 200 occupies in the rest position of the slide, to a second position, the second position being behind the first position. When the barrel 200 is in the first position, the control lug 202 is located at the front end or between the front and rear ends of the control cam 110. When the barrel 200 is in the second position, the control lug 202 is typically located at the rear end of the control cam 110.

[0100] The control cam 110 is designed such that the barrel 200 rotates when the slide 500 retracts. For this purpose, the control cam 110 has at least one section that runs obliquely to the barrel axis L to effect the rotation of the barrel. Particular reference is made to Figure 19, which shows that the control cam 110 has a first section that runs essentially parallel to the barrel axis L, resulting in a purely linear movement of the barrel 200 without rotation. This first section is not essential, however, and may only be provided to facilitate the insertion of the barrel 200 into the grip 100. Furthermore, the control cam 110 also has a second section that runs obliquely, which causes the barrel 200 to rotate when the control lug 202 is guided in the control cam 110.

[0101] Reference is again made to Figure 1, which shows that the barrel 200 assumes the first position when the carriage 500 is in its rest position. In Figure 2, the carriage 500 is in the intermediate position, in which the barrel 200 assumes the second position. Further retraction of the carriage 500 does not change the position of the barrel 200, so that the barrel 200 remains in the second position when the carriage 500 moves from the intermediate position to its fully retracted position.

[0102] To ensure that the barrel 200 is only partially moved along with the slide 500, locking lugs 204 are provided, which are received in a locking body 510 of the slide 500 when the slide 500 is in its rest position. As the slide 500 retracts, the locking lugs 204 remain in the locking body 510 until the barrel 200 has rotated sufficiently for the locking lugs 204 to move out of the locking body 510. As can be seen in Figure 7, the locking body 510 is open laterally for this purpose, i.e., on the right side when viewed in the direction of firing. This allows the locking lugs 204 to rotate out of the locking body in a direction normal to the running axis by means of the rotational movement, whereby the locking lugs 204 are no longer in the locking body 510 and there is no longer any coupling between barrel 200 and slide 500.

[0103] Figure 18 shows the movement diagram of the locking lugs 204 in a superimposed view, while Figure 19 shows the movement diagram of the control lug 202 in a superimposed view. TI indicates that the barrel 200 is in the first position, i.e., the slide 500 is in its rest position and the locking lugs 204 are engaged in the locking body 510. When a shot is fired, the slide 500 moves backward, thus driving the barrel 200 along with it, since the locking lugs 204 are engaged in the locking body 510. However, Figure 19 shows that, as the slide retracts, the control lug 202, and consequently the entire barrel 200, rotates into the second position, designated T2, via the inclined control cam 110. Figure 18 shows that this also caused the locking lugs 204 to rotate into position T2, in such a way that they moved out of the locking body 510.However, during a further movement, the carriage 200 is no longer carried along with the carriage 500, and the carriage 500 moves without carriage 200 to the maximum retracted position.

[0104] Without further precautions, however, there would be a risk that the barrel 200 would return to its original position (i.e., that the control lug 202 would move forward in the control cam 110) after the locking lugs 204 have moved out of the locking body 510. For this reason, the guide lug 203 is used, as it prevents the barrel 200 from rotating backward.

[0105] It should be reiterated that the slide 500 has a section 504 at its front end with a curvature adapted to the shape of the barrel 200, see Figure 20. Furthermore, two points of the curvature extend downwards to the left and right of the barrel 200; these are also referred to as frontal guides 511. In the rest position of the slide 500, the frontal guides 511 are guided by and engaged with a guide 111 in the front section of the grip 100. As can be seen in Figure 5, however, the guide 111 is short on one side, so that behind the guide 111 on that side there is a notch 112 in which the guide lug 203 can be received in the second position of the barrel 200. The guide 111 on the other side is continuous and guides one of the frontal guides 511 throughout the entire firing process.

[0106] Figure 20 shows the position of the front section 504 of the slide 500 with the two front guides 511 before firing. It is evident that the front guides 511 are located on the guides 111 of the grip 100. Figure 21 shows the state of the handgun 1 after firing, at a point when the slide 500 is in an intermediate position. It is evident that the front section 504, and thus also one of the front guides 511 of the slide 500, has moved down from the guide 111 on one side and is now positioned above the notch 112. At this point, however, the guide lug 203 is located in the recess 112 and beneath one of the front guides 511, thus preventing the guide lug 203 from rotating upwards. This prevents the barrel 200 from rotating backwards after the locking lugs 204 have been released from the slide 500. This is also shown in Figure 22.

[0107] From the view of Figure 21, it can also be seen that the guide lug 203 does not impede the rotation of the barrel 200 when the slide 500 is in the rest position, since at this time the front section 504 of the slide 500 is still in front of the guide lug 203 and the frontal guides 511 are on the guide 111 of the grip 100.

[0108] It was mentioned above that the guide lug 203 has a chamfer 205 at its front end. This allows the front section 504 of the slide 500, or one of the front guides 511, to more easily engage the guide lug 203. The front section 504 may also have a corresponding chamfer.

[0109] The length of the guide lug 203 is selected such that the front section 504 of the slide 500 lies above the guide lug 203 for the entire period during which the slide 500 moves from the intermediate position to its fully retracted position. For example, the guide lug 203 has a length that is at least one-quarter of the length of the barrel 200. It should be noted that in the preceding figures, the notch 112 was located on one side. This side is determined by the direction of rotation of the barrel 200 specified by the control cam 110. The notch 112 could be located on the other side if the control cam 110 specified a correspondingly different direction of rotation of the barrel 200.

[0110] In summary, the operating principle of the rotary barrel system is illustrated again in Figures 23a - 26d using sectional views in the different states of the handgun 1 during firing.

[0111] Figures 23a-23d show the state of the slide 500 in its rest position before firing. It can be seen that the guide lug 203 is located above the guide 111 or the recess 112. The control lug 202 is located at the front end of the second section of the control cam 110. The locking lugs 204 are received in the locking body 510.

[0112] Figures 24a-24d show the state shortly after the locking lugs have moved out of the locking body 510. The control lug 202 is located at the rear end of the control cam 110. It can be seen that the guide lug 203 has moved into the recess 112. The front guide 511 has already moved down from the guide 111, but is not yet above the guide lug 203.

[0113] Figures 25a - 25d show the state shortly after the frontal guide 511 has moved over the guide lug 203 and thus prevents the barrel 200 from turning backward.

[0114] The control lug 202 remains at the rear end of the control cam 110 and the locking lugs 204 remain outside the locking body 510.

[0115] Figures 26a-26d show the state after the front guide 511 has moved to the rear end of the guide lug 203 and the carriage is in its fully retracted position. The control lug 202 remains at the rear end of the control cam 110 and the locking lugs 204 remain outside the locking body 510.

[0116] The following section describes the firing system 300, which is illustrated in Figures 27 and 28. The firing system 300 comprises the trigger 301, a breaker lever 302, a breaker bolt 303, a trigger bar 304, and a hammer 305. The trigger 301 is mounted in the grip 100, for example, by gluing a threaded bolt into the trigger 501 using threadlocker. The breaker lever 302 is pivotally mounted on the trigger 301. The breaker bolt 303 is slidably mounted in the slide 500. The trigger bar 304 and the hammer 305 are pivotally mounted on the sight rail 400.

[0117] The primary function of the interrupter lever 302 is to ensure that the handgun 1 fires only a single shot after each discharge, even if the trigger 301 remains depressed. Without the interrupter lever 302, the weapon would uncontrollably enter fully automatic mode.

[0118] Figure 27 shows the firing system 300 before firing. The interrupter lever 302 is in a position where it is essentially perpendicular to the interrupter bolt 303. When the trigger 301 is pulled, the trigger 301 moves rearward and the interrupter lever 302 moves essentially upward. Since the interrupter lever 302 is essentially perpendicular to the interrupter bolt 303, pulling the trigger 301 also pushes the interrupter bolt 303 upward until the trigger bar 304 has pivoted sufficiently to release the hammer 305, which then strikes the firing pin 503. The movement of the firing pin 503 against a cartridge in the barrel fires a shot.

[0119] After the shot is fired, the slide 500 moves backward. This also moves the interrupter bolt 303 backward, releasing it from the interrupter lever 302. The interrupter bolt 303 then falls back down inside the slide 500. However, if the trigger 301 remains depressed and the slide 500 has returned to its rest position, the interrupter lever 302 will be positioned next to the interrupter bolt 303, as shown in Figure 28. Therefore, automatic firing is not possible, and the trigger 301 must first be returned to its original position so that the interrupter lever 302 can be moved below the interrupter bolt 303. At this point, the position shown in Figure 21 is restored, and another shot can be fired.

[0120] To pivotably connect the trigger 301 to the interrupter lever 302, the prior art provided that the trigger 301 and the interrupter lever 302 each comprised a hole, and a bolt was inserted through this hole. However, an improvement to this system was found by manufacturing the interrupter lever 302 and the trigger 301 in a single step, e.g., using a 3D printing process, such as metal sintering. This ensures that the interrupter lever 302 is permanently and irremovably embedded in the trigger 301. To manufacture the interrupter lever 302 permanently within the trigger 301 during a 3D printing process, the interrupter lever 302 can be designed as shown in Figures 29 and 30. As shown, this interrupter lever 302 can comprise a lever arm 310 and a bearing pin 311 integrally formed thereon. The bearing journal 311 forms two projections extending laterally from the lever arm 310. The bearing journal 311 orThe projections of the bearing pin 311 can be received in two annular receptacles 320 of the trigger, with the lever arm 310 protruding from the trigger 301 between the annular receptacles 320. In other words, the breaker lever 302 can only rotate about one axis of rotation, but otherwise cannot perform any translational movement with respect to the trigger 301 without deforming and / or destroying the trigger 301. The breaker lever 302 is thus pivotably mounted in the trigger 301 and positively connected to the trigger 301 in all three spatial directions.

[0121] As shown in Figures 29 to 31, there could thus be exactly one bearing pin 311 located on one (lower) side of the lever arm 310, and the bearing pin 311 could form two projections extending from the lever arm 310, which are arranged coaxially and supported in opposing recesses 320 of the trigger 301. It is understood, however, that the interrupter lever 302 need not be designed as shown in Figures 29 and 30, but could, for example, be provided with two bearing pins 311, so that the interrupter lever 302 could be formed by a lever arm 310 with two (or only one) bearing pins 311 projecting laterally from it, each forming a projection, the bearing pins 311 and projections being supported in the receptacles 320 of the trigger 301.In other words, two bearing pins 311 can be present, each located on a side wall of the lever arm 310 and forming two projections extending from the lever arm 310, which are arranged coaxially and are mounted in opposite recesses of the trigger 301.

[0122] If the combination of trigger 301 and breaker lever 302, hereinafter referred to as the "trigger system," is 3D-printed in this embodiment in a single operation, the breaker lever 302 can no longer be removed from the trigger 301; that is, it is permanently embedded within the trigger 301. Such manufacturing is particularly suitable for small-batch production where only a manageable number of units are produced and the labor involved in inserting the bolt can be saved. Figure 30 further shows that a pin 312 for a spring between the trigger 301 and the breaker lever 302 can be provided on the breaker lever 302. The pin 312 can be formed integrally with the lever arm 310, with the pin 312 guiding a spring located between the lever arm (310) and the trigger 301.

[0123] Figure 31 shows the interrupter lever 302 of the striking mechanism in a sectional view.

[0124] It is evident that the recesses 320 are through openings. However, the recesses 320 could also be designed as blind holes, so that the bearing journal(s) are covered on the outside.

Claims

Claims:

1. Handgun (1) comprising a grip (100), a barrel (200) mounted in the grip (100) with a barrel axis (L), a firing mechanism (300), a sight rail (400) and a slide (500), wherein the sight rail (400) can be locked immovably on the grip (100) such that the barrel axis (L) lies between the grip (100) and the sight rail (400), and wherein at least a part of the firing mechanism (300) is mounted on the sight rail (400), wherein the slide (500) is displaceable from a rest position to a maximally retracted position, characterized in that a front side (Sl) of the sight rail (400) lies behind a front side (S2) of the slide (500), viewed in the firing direction of the handgun (1).

2. Handgun (1) according to claim 1, wherein the sight rail (400) is at least partially covered by the slide (500) on the upper side of the handgun (1) facing away from the grip (100) in the rest position, and wherein the slide (500) has a recess on its upper side through which a part of the sight rail (400) passes, and wherein the recess preferably has a length (x3) in the direction of the barrel axis (L) which corresponds substantially to the length (xl) of said part of the sight rail (400) passing through plus the distance (x2) between the rest position and the fully retracted position.

3. Handgun (1) according to claim 1 or 2, wherein the sight rail (400) is shorter than the slide (500), measured in a direction parallel to the barrel axis (L).

4. Handgun (1) according to one of the preceding claims, wherein the slide (500) comprises a front section (504) which, viewed in the direction of firing, lies in front of the sight rail (400), wherein the front side of the sight rail (400) lies behind an inner side of the front section (504) of the slide (500), preferably at a distance which corresponds at least or substantially to the offset between the rest position and the maximum retracted position of the slide (500).

5. Handgun (1) according to one of the preceding claims, wherein a closing spring (505) located above the barrel (200) is situated between the sight rail (400) and the slide (500) and biases the slide (500) into the rest position.

6. Handgun (1) according to one of the preceding claims, wherein the sight rail (400) has at least one first support strut (401) which projects from a body of the sight rail (400) on one side of the barrel axis (L) and can be connected to the grip (100) to lock the sight rail (400) to the grip (100).

7. Handgun (1) according to claim 6, further comprising a mounting bolt (600) that can be inserted into the grip (100), wherein the first support strut (401) has a curvature corresponding to the mounting bolt (600) on the side facing the mounting bolt (600), wherein the mounting bolt (600) prevents the sight rail (400) from being displaced in a direction parallel to the barrel axis (L) when the mounting bolt (600) is in a first position in the grip (100).

8. Handgun (1) according to claim 7, wherein the mounting bolt (600) has at least one first groove (601) having a width that corresponds at least to the width of the first support strut (401), and wherein the mounting bolt (600) can be moved within the grip (100) from the first position to a second position, wherein the first groove extends at a distance from the first support strut (401) when the mounting bolt (600) is in the first position to lock the sight rail (400), and wherein the first groove (601) extends in alignment with the first support strut (401) when the mounting bolt (600) is in the second position to release a locking of the sight rail (400).

9. Handgun (1) according to claim 8, wherein the mounting bolt (600) is biased into the first position by means of a spring (602), wherein the mounting bolt (600) has a chamfer (603) extending from the first groove (601) in a direction normal to the barrel axis (L), and the first support strut (401) has a correspondingly opposing chamfer (409), wherein the chamfers (409, 603) are designed such that the sight rail (400) can be displaced parallel to the barrel axis (L) when the sight rail (400) is inserted into the grip (100), while the mounting bolt (600) is moved from the first position to the second position due to the chamfers (409, 603) until the sight rail (400) is in an assembly state in which the mounting bolt (600) is returned to the first position due to the spring (602). The position is moved.

10. Handgun (1) according to one of claims 6 to 9, wherein the first support strut (401) comprises a front lower end (431) and a rear lower end (432) between which the curvature corresponding to the mounting bolt (600) is extends, wherein the front lower end (431) is preferably longer than the rear lower end (432).

11. Handgun (1) according to one of claims 6 to 10, wherein the sight rail (400) further comprises a second support strut (401), which is preferably designed in the same way as the first support strut (401), wherein the first support strut (401) and the second support strut (401) extend from the body of the sight rail (400) on opposite sides of the barrel axis (L) and are connected to the grip (100).

12. Handgun (1) according to claim 11, wherein the mounting bolt (600) further comprises a second groove (601) having a width at least equal to the width of the second support strut (401), wherein the second groove (601) extends at a distance from the second support strut (401) when the mounting bolt (600) is in the first position to lock the sight rail (400), and wherein the second groove (601) extends in alignment with the second support strut (401) when the mounting bolt (600) is in the second position to release the sight rail (400).

13. Handgun (1) according to one of the preceding claims, wherein the sight rail (400) has at least a first L-shaped groove or recess (402) on a side surface of the sight rail (400) into which an element, in particular a leg of an L-shaped or T-shaped projection (403), of the grip (100) engages to lock the sight rail (400).

14. Handgun (1) according to one of the preceding claims, wherein the sight rail (400) is connected to the grip (100) on the rear side of the handgun (1), wherein the grip (100) preferably has a T-shaped groove (106) into which a T-shaped projection (406) of the sight rail engages.

15. Handgun (1) according to one of the preceding claims, wherein the sight rail (400) has on the rear side in the direction of firing a surface that is substantially normal to the barrel axis (L), in which a screen is preferably integrated.

16. Handgun (1) according to claim 15, further comprising at least one sensor, wherein the handgun (1) is configured to display measurement data of the sensor or data derived from measurement data of the sensor on the screen.

17. Handgun (1) according to one of the preceding claims, wherein the slide (500) is guided in the grip (100) on the side furthest forward in the direction of firing when at rest.

18. Handgun (1) according to one of the preceding claims, wherein the barrel (200) has a control lug (202), a guide lug (203) and at least one locking lug (204), wherein the grip (100) has a control cam (110) for the control lug (202), wherein the control cam (110) is designed such that the barrel (200) can be moved from a first position, which the barrel (200) assumes in the rest position of the slide (500), to a second position, wherein the barrel (200) in the second position is rotated relative to the first position and offset along the barrel axis (L), wherein the slide (500) has a locking body (510), wherein the at least one locking lug (204) is received in the locking body (510) when the slide (500) is in the rest position, and the locking lug (204) is located outside the locking body (510) when the barrel (200) is in the second position,and wherein the slide (500) further comprises a frontal guide (511) located on the guide lug (203) and thereby prevents rotation of the barrel (200) when the barrel (200) is in the second position.

19. Handgun (1) according to one of the preceding claims, wherein the front guide (511) is guided in a guide (111) in the grip (100) when the slide (500) is in the rest position, and wherein the guide (111) is preferably located in the grip (100) on both sides of the barrel (200) and has a recess (112) on only one side in which the guide lug (203) is received when the barrel (200) is in the second position.

20. Handgun (1) according to one of the preceding claims, wherein the striking system (300) comprises a trigger (301) and a breaker lever (302) pivotably mounted in the trigger (301), wherein the breaker lever (302) comprises a lever arm (310) and at least one bearing pin (311) formed integrally thereon, wherein the bearing pin (311) is located in at least one recess (320) of the The trigger (301) is included and the interrupter lever (302) is permanently mounted in the trigger (301).

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