Sport and hunting weapon with locking guide

Abstract

Hunting or sporting firearm with a bolt carrier guided longitudinally displaceable on a receiver (5) or receiver of the firearm in the direction of fire (35), which is mounted on the receiver or receiver in the manner of a sliding guide (14, 15), wherein sliding elements (16, 20, 22, 24, 26, 32) are arranged in the sliding guide (14, 15, 40, 41) for noise reduction and improvement of the sliding properties.

Description

[0001] The invention relates to a sporting and hunting weapon with a breech guide according to the preamble of claim 1.

[0002] A hunting weapon of the type mentioned above is known, for example, from EP 4 177 562 B1, which originates from the same applicant. The hunting or sporting weapon in question has a bolt which, for cycling, has a sliding guide in the receiver. The bolt housing is guided laterally in opposing and complementary sliding tracks within the receiver so as to be longitudinally displaceable.

[0003] A disadvantage of the known longitudinal guidance of the breechblock housing in the system box of the weapon is the increased wear during prolonged use of the weapon, the existing risk of accidents during cycling due to canting of the breechblock or its guides, and the impossibility of adequately cleaning the longitudinal guidance.

[0004] The known material pairing of a longitudinal guide for the breechblock in the system box is a metal-on-metal breechblock guide, which has the disadvantage of a high noise level and no smooth gliding during cycling, which is particularly undesirable in a hunting rifle, since the breechblock should close silently, especially during the first shot.

[0005] The subject matter of DE 195 30 793 C2 discloses a repeating device for rifles with a straight-pull bolt action, in which the straight-pull bolt action is also guided longitudinally in a metallic guide track within the receiver. Therefore, the same disadvantages exist as mentioned at the outset.

[0006] DE10 2021 118 639 B3 describes sliding tracks for guiding the closure, but these do not include any special features with regard to reducing noise generation, which means that here too, undesirable wear and a high noise level must be accepted.

[0007] The invention, therefore, based on DE 195 30 793 C2, is based on the objective of further developing a bolt carrier guide in a hunting or sporting weapon in such a way that higher wear resistance, a lower noise level with the advantages of improved cleaning and improved smooth operation (very good sliding properties) are ensured.

[0008] To solve the problem posed, the invention is characterized by the technical teaching of claim 1.

[0009] In a preferred first embodiment, the invention relates to a straight-pull bolt action of a hunting or sporting weapon with a bolt carrier guide according to the invention.

[0010] Since the invention also relates to the improvement of rotatable cylinder closures, the term "closure housing" is used in the following description, as is the case with a straight-pull or angled-pull closure. However, instead of the term "closure housing" used here, the more general term "closure carrier" is also used, because it also includes cylinder closures.

[0011] Therefore, the technical teaching of the invention is also applicable to a bolt carrier that operates with an angled bolt or a cylinder bolt, as well as with a semi-automatic or fully automatic bolt. That is to say, the invention is applicable to any type of bolt carrier in which the bolt performs a rotational and / or sliding movement in the direction of firing on or within the receiver or receiver of the firearm.

[0012] The term "system box" is also commonly used as "system sleeve" and should be understood in the same way as described below.

[0013] The term "closure housing" is also commonly used as the term "closure carrier" and should be understood as synonymous with the term "closure housing".

[0014] The applicant's tests have shown that the repeating process can be significantly improved by improving the friction properties of the bolt carrier.

[0015] The term "gliding shoe" used in the following description is to be understood in the broadest sense, as this term is used synonymously for any type of sliding element. Such sliding elements can therefore also be designed as sliding shoes, sliding studs, or sliding rollers.

[0016] This is where the invention comes into play, which, according to a first preferred embodiment, provides that sliding elements, preferably sliding shoes, are arranged in the locking carrier guide, which are slidably guided in associated grooves in the system box.

[0017] Such sliding elements can be made of various materials. It is preferred if such sliding elements are made of a wear-resistant plastic material, in particular a plastic doped with graphite powder, and / or oil-impregnated sliding elements, which, for example, consist of a sintered metal filled with a suitable oil coating.

[0018] This results in the advantage of a maintenance-free design, as the wear of the locking carrier guide is significantly minimized.

[0019] It is preferred that the sliding elements in a first embodiment consist of a high-strength, wear-resistant, and low-friction plastic. This can be a plastic doped with graphite powder.

[0020] A second version proposes an oil-based lubrication of sliding elements made of plastic, which on the one hand significantly improves the smoothness of the closure during the repeating movement and on the other hand prevents an unwanted noise.

[0021] In a third, preferred embodiment of the invention, it is provided that the sliding elements consist of an oil-impregnated plastic.

[0022] In a particularly preferred embodiment, high-performance plastic materials are used. These are preferably wear-resistant plastics that exhibit high mechanical strength even under abrasive conditions. In a preferred embodiment, this is a modified cast polyamide produced from PA6G-oil, incorporating a mineral oil during polymerization. This gives the material a self-lubricating effect, allowing it to retain its excellent properties throughout its service life.

[0023] The invention is based on a longitudinally symmetrical design of a longitudinally displaceable bolt for a hunting or sporting firearm. Therefore, for the purposes of further description, it suffices to describe only one side of the bolt and the complementary guide on the receiver side, because the corresponding parts are longitudinally symmetrical. Thus, describing only one side of the bolt carrier guide is sufficient to describe the entire component, as the opposite side is identically designed.

[0024] In a preferred embodiment, the sliding elements are attached laterally to the bottom side of the closure housing, with two sliding elements arranged one behind the other at a longitudinal distance on each side of the closure housing, thus having a mutual distance.

[0025] In addition to the arrangement of two sliding elements in the training as a sliding shoe on each side, of course more or fewer sliding shoes can also be used.

[0026] Instead of using individual, piecemeal sliding elements, self-lubricating profile rails can also be used. These extend over the entire length of the sliding guide and are preferably located on the bottom side of the closure housing. They are preferably made of the same self-lubricating plastic material as a sliding shoe. Such a self-lubricating plastic profile rail engages with a complementary metal rail on the top of the system housing and slides along it.

[0027] When arranging sliding shoes or slide rails on the breechblock housing, it is preferred if the opposing guide track is attached in or on the system box of the weapon, the guide track preferably being made of a metal material, such as an aluminum alloy or a steel alloy, which is surface-treated accordingly and, for example, has a polished surface to provide a particularly smooth surface for the opposing oil-impregnated sliding elements.

[0028] When choosing an aluminum alloy, it is preferred if it is hard-anodized, and for metallic materials, for example iron alloys, it is preferred if their surfaces are tempered, for example hardened and / or polished, or have their own chromium layer or other finishing layers.

[0029] In a preferred embodiment, the sliding elements are designed in cross-section in the form of rectangles or squares, which run on associated, complementary raceways on the system box side.

[0030] The invention is not limited to this. In other embodiments, the sliding elements may have a U-profile, a prismatic profile, a round profile, a semi-circular profile, or a rectangular or square profile. However, a flat profile is preferred; that is, each sliding element has an approximately rectangular or square cross-section and a straight, approximately horizontal lower running surface opposite a straight, horizontal counter-running surface on the system box side. For jamming-free guidance, a total of three sliding surfaces are arranged at 90-degree angles to each other on the side of the sliding element and the complementary sliding guide on the system box side.

[0031] While the present description assumes that the sliding elements are arranged on the closure housing and run on sliding tracks on the system box side, the invention is not limited thereto. The kinematic reversal of this arrangement is also claimed as essential to the invention, in which the sliding elements are arranged on or at the system box and the sliding tracks are arranged on or in the closure housing. For the sake of simplicity, however, the following description refers to the embodiment described first.

[0032] It was mentioned above that the sliding elements are arranged in pairs on each side of the closure housing at a distance from one another. The invention is not limited to this. In another embodiment, a central sliding element guide may be provided, meaning that an arrangement of sliding elements of the type mentioned above is located centrally along the longitudinal axis of the closure housing, and the sliding elements slide centrally and centrally on a guide rail in the system housing that is aligned centrally and longitudinally.

[0033] According to a further development of the invention, the bolt housing can be extended to the rear or front by suitable steel or other metallic rails, and the sliding guide is arranged in the area of ​​these steel rails. This means that the sliding elements are not located in the bolt housing itself, but rather in the area of ​​the metal rails extending the bolt housing, which slide on opposing, complementary guide rails in the receiver in the direction of firing during the cycling process.

[0034] In general, the invention preferably utilizes self-lubricating sliding elements, preferably in the form of a sliding shoe, which form the inventive breechblock guide for the hunting or sporting firearm. Other embodiments have tested roller guides consisting of balls or rolling elements. However, it was found that such point-like longitudinal guides formed by balls or other rolling elements are highly susceptible to contamination, difficult to replace, and generate noise when dirty. Furthermore, they are not sufficiently robust against the stress of firing. In contrast, the sliding guides according to the invention with self-lubricating sliding elements are resistant to contamination, easy to clean, and do not generate noise even when dirty.

[0035] Additionally, it may be provided that at least one wiping lip is arranged with the longitudinal displacement of the locking housing on the sliding tracks of the system box, which preferably wipes the sliding track after each repeating process and removes any foreign bodies that may be adhering to it.

[0036] The wiper lip can be positioned in the direction of movement in front of the respective sliding element and clean the sliding track before the sliding element moves along the track on the system box side. Alternatively, the wiper lip can also be positioned at one end of the sliding track on the system box to clean the sliding element as it passes by.

[0037] In addition, the wiper lip can also carry an oil coating which, as the sliding element passes by, coats and / or cleans the sliding element and / or the sliding track with a new oil coating.

[0038] As a replacement for a wiper lip, the sliding elements can also have sharp edges in the guide sides so that they push the dirt away in front of them or behind them.

[0039] The subject matter of the present invention is not only derived from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

[0040] All information and features disclosed in the documents, including the abstract, and in particular the spatial configuration shown in the drawings, could be claimed as essential to the invention, insofar as they are novel individually or in combination compared to the prior art. The use of the terms "essential," "according to the invention," or "essential to the invention" is subjective and does not imply that the features so designated must necessarily be part of one or more patent claims.

[0041] The invention is explained in more detail below with reference to drawings illustrating several embodiments. Further essential features and advantages of the invention will become apparent from the drawings and their description.

[0042] They show: Figure 1: Perspective side view, right, of a sporting or hunting weapon according to a preferred design. Figure 2: Perspective side view, left, of a hunting or sporting weapon according to... Figure 1 Figure 3: Top view of the hunting or sporting weapon according to the Figures 1 and 2 Figure 4: the enlarged detail view A in Figure 3 Figure 5 shows the locking housing guide: Section along line uu in Figure 4 Figure 5a: a detailed view of detail C in Figure 5 Figure 6: Perspective view of the closure housing with the sliding shoes according to the invention. Figure 7: The underside view of the illustration in Figure 6 Figure 8: a detail section according to Detail A in Figure 6Figure 9: Top view of the closure according to Figures 6 and 7 Figure 10: Section along line AA in Figure 9 Figure 11: Illustration of detail D in Figure 10 Figure 12: Section along line BB in Figure 9 Figure 13: The representation of detail C in Figure 12 Figure 14: a first embodiment. Figure 15: a second embodiment. Figure 16: a third embodiment. Figure 17: a fourth embodiment. Figure 18: schematically represents a fifth embodiment of a sliding guide with a sliding shoe according to the invention. A preferred embodiment, which is shown in Figure 5a is described in more detail.

[0043] In the Figures 1 and 2 The figure generally represents a sporting and hunting weapon of the type mentioned at the beginning, which has a barrel 1 whose firing direction points in the direction of arrow 35.

[0044] A locking housing 2 is provided, which retracts under a cheek rest 3 located on the buttstock during the cycling process. In the prior art, undesirably loud noises and canting of the locking mechanism during rapid cycling operations had to be accepted; these problems are now eliminated by the features of the invention.

[0045] In a manner known per se, the buttstock 10 of the hunting and sporting weapon has a butt plate 4 and the breechblock 2 is movable on the system box 5 in the directions of arrow 35 during the repeating process.

[0046] The hunting and sporting weapon has a front trigger 6 and a pistol grip 8 located behind it, in which a hand cocking lever 7 is arranged as a safety element.

[0047] All parts of the breechblock guide are preferably arranged on or in the buttstock 10, with the system box 5 being connected to the forend 9 at the front under the barrel.

[0048] The locking housing 2 has a locking head 11, which is, for example, in Figure 6 It is depicted as a roughly semi-circular profiled metal housing, which in the top view is in Figure 3 The breechblock housing 2 is associated with a bolt handle 13 and the bolt head 11 is closed at the front by a locking chamber 12 in the barrel 1.

[0049] According to the system box 5, the side surfaces are... Figure 4 Slide tracks 14, 15 are arranged which cooperate with associated sliding shoes 16 which are arranged in the closure housing 2.

[0050] This results in smooth-running, preferably oil-lubricated, running surfaces that produce no noise during the cycling of the bolt housing 2 and exhibit high wear resistance. This is a significant advantage in a hunting rifle, because otherwise the game would be spooked by the cycling noise, especially during the first shot.

[0051] These are complementary sliding guides with slideways 14 and 15, which can be provided in various designs and profiles, as will be shown later. Figures 14 to 18 will be explained in more detail. A design of a sliding track according to Figure 5a and the schematic representation shown there is preferred.

[0052] Preferably, the sliding shoes 16 are arranged on the sliding tracks 14, 15 according to the invention and interact with associated sliding tracks on the system box 5. These are therefore complementary running surfaces arranged in relation to each other.

[0053] In another embodiment, the kinematic inversion can also be used, namely by arranging the sliding shoes 16 on the top of the system box 5 and arranging the associated complementary sliding surfaces or tracks on the underside of the closure housing 2.

[0054] It is also possible that the sliding shoes 16 are not arranged directly on parts of the closure housing 2, but that the closure housing 2 is extended to the rear and / or to the front by suitable metal rods and that the sliding tracks and the associated complementary sliding shoes 16 are arranged in the area of ​​these metal tracks or rails.

[0055] The general description also pointed out that instead of the parallel sliding tracks 14, 15 arranged at a distance from each other, there could also be a central, longitudinally oriented sliding track, which in Figure 4then in the longitudinal mid-area of ​​the Figure 4 through the system box 5 and a complementary running surface is present on the opposite central sliding rail of the locking housing 2.

[0056] The Figure 5 shows the section according to line uu in Figure 4 , whereby the weapon's position of use is determined according to Figure 5 It must be thought of as rotated 90° vertically, that is, the section view in Figure 5 is vertically aligned in the weapon's operating position.

[0057] It can be seen that the system box 5 is attached to the buttstock 10 and that rectangular grooves are arranged on each side of the system box 5, each forming an upper sliding track 14, 15 and lateral sliding tracks 40, 41.

[0058] It is therefore a guide for sliding shoes in a rectangular groove, as is found in Figure 5a is described in more detail.

[0059] It is preferred if the sliding shoes 16 are attached to the locking housing 2, as shown in Figure 5a is shown.

[0060] In relation to Figure 5a It is also mentioned that the longitudinally displaceable locking housing 2 has a lower clearance 42 in the direction of the opposite system box 5 and that the actual load-bearing and displacement force is only present in the guide area between the three perpendicular sliding tracks 14, 15; 40, 41 and that there are no further physical contacts of the locking housing guide.

[0061] In another embodiment of the invention, however, the kinematic reversal can also be chosen, in which the sliding shoes 16 are firmly anchored in the system box 5 and slide on associated, preferably rectangular, running surfaces on the closure housing 2.

[0062] The Figure 6Figure 1 shows a preferred embodiment in which the sliding shoes 16 are designed as longitudinally elongated plastic sliding shoes, which have a preferred length of about 20 mm and a thickness of 5 mm.

[0063] They are roughly rectangular in profile. They can also have a different shape, namely a shape complementary to their assigned trajectory, as shown by the later Figures 14 to 18 is described.

[0064] Instead of the arrangement of two opposing sliding shoes 16 on the underside of the closure housing 2 according to Figure 6 Multiple pairs of sliding shoes can also be arranged on each side of the closure housing 2.

[0065] Different pairings can also be chosen, for example, on one side of the locking housing, namely on the side where the chamber handle 13 is subjected to force, a larger number of sliding shoes are arranged, as on the opposite side or vice versa.

[0066] In Figure 7 The underside view is shown, where it is shown that the sliding shoes 16 are arranged as elongated, preferably rectangular or square profiled plastic strips at the rear and front ends of the closure housing 2 and have a greater effective length than the other sliding shoes 16 arranged at the front end of the closure housing 2.

[0067] The length of the gliding shoes 16 depends on the guiding task and can be chosen to be the same or different.

[0068] The Figure 8Figure 1 shows that the sliding shoes 16 are preferably arranged on an associated holder on the side of the closure housing 2 by means of pins 17. The sliding shoes 16 can be easily replaced by pushing out such a pin 17, as they are wear parts.

[0069] In Figure 7 It is still recognizable that a T-nut 38 is fastened with a fastening screw 39, which connects the breechblock housing 2 to a main or system sleeve of the weapon (not shown in detail). Figures 3 and 4 They also show that on the underside of the breech housing 2 there is a cartridge guide for a magazine 37, which transports the cartridges to be fired via the magazine 37 to the underside of the breech housing 2.

[0070] The Figure 9 Figure 1 shows the locking housing 2 in top view with the removable locking head 11 and the front and rear sliding shoes 16. Figure 13shows the interchangeability of the sliding shoes 16, whereby the one in Figure 8 The pin 17 shown engages in an associated bore 18 on the side wall of the closure housing 2 and thus releasably holds the sliding shoe 16.

[0071] It is simply attached and pinned, and has fixed stop surfaces so that it cannot be rotated or moved on the side surface of the locking housing 2 according to Figure 13 lies down.

[0072] In Figure 13 The three perpendicular sliding tracks 14, 15 and 40, 41 of the sliding shoe 16 are shown.

[0073] The Figure 11 also shows the pinning of the sliding shoes 16 with the pin 17 in the bore 18 on the side of the closure housing.

[0074] The special properties of the sliding shoes 16, namely their freedom from tilting and their good guiding properties, also result from the Figure 10, where it can be seen that they take up the greatest possible distance from each other in the longitudinal direction in order to ensure a tilt-free, noiseless and wear-free guidance of the locking housing 2 on the system box 5.

[0075] Instead of the replaceable holder of the sliding shoes 16 with a pin 17 that passes through a bore 18 in the closure housing 2, other replaceable fastenings are also possible, such as a screw fastening, a wedge or clamp fastening or T-slots, dovetail or adhesive connections or simple plug connections or shrink connections.

[0076] The Figures 14 to 18 The figures schematically show different embodiments of how the corresponding sliding paths in the profile could look.

[0077] The Figure 14shows a rectangular guide 28, wherein the sliding shoe 20 is designed as a rectangular profile and is supported on the complementarily profiled system box 5 by means of three sliding tracks 40, 41 that are at an angle of 90° to each other.

[0078] The Figure 15 In contrast, a prism guide 29 is shown, wherein the sliding shoe 22 is prism-shaped and is supported by sliding tracks 40 arranged at an angle to each other on complementary sliding tracks on running surfaces in the system box 5.

[0079] Figure 16 In contrast, a square guide 30 with a sliding shoe 24, which has a rectangular groove that rests on a rectangular rail system in the system box 5, again in the area of ​​three mutually perpendicular sliding tracks 14, 15, 40, 41, is shown.

[0080] Figure 17Figure 1 shows another embodiment of a sliding pair, namely a circular guide 31, which operates with a semicircular sliding shoe 26 adapted to it. The sliding shoe 26 has an inner sliding track 40 with a semicircular profile, which interacts with a complementary sliding track on the rail system of the system box 5.

[0081] Figure 18 shows the preferred fifth embodiment according to the invention, which is also shown in Figure 5a is shown in more detail. It can be seen that the sliding shoe 16 has an essentially rectangular profile and the flat guide 34 in Figure 18 with the in Figure 5a The depicted section corresponds to the section shown.

[0082] The in Figure 18 The illustrated sliding shoe 32 corresponds to the similarly profiled sliding shoe 16 and also forms three sliding tracks 40, 41 at an angle of 90° to each other.

[0083] In the illustrated embodiment according to Figure 18The lower slide track 14 is opposite an upper slide track 14, 15.

[0084] In all schematically depicted drawings, it is important to note that these are indeed sliding guides, i.e., components that touch each other and are preferably oil-lubricated only in their contact area.

[0085] The sliding elements – preferably in the form of sliding shoes – can also be designed as sliding knobs or sliding strips in the cylindrical chambers of the cylinder locks, being located on the circumference or on or within the cylindrical surface of the cylinder lock to ensure silent and jam-free movement within the associated system sleeve. Thus, the invention also improves the sliding properties of rotatable and longitudinally displaceable cylinder locks. Drawing legend

[0086] 1. Barrel 2. Receiver 3. Cheekpiece 4. Buttplate 5. Receiver 6. Trigger 7. Cocking lever 8. Pistol grip 9. Fore-end 10. Buttstock 11. Bolt head 12. Locking chamber 13. Bolt handle 14. Right slide 5 15. Left slide 5 16. Slide shoe 17. Pin 18. Hole 2 for 17 19. Receptacle 2 for 16 20. Slide shoe 21. - 22. Slide shoe 23. - 24. Slide shoe 25. - 26. Slide shoe 27. - 28. Rectangular guide 29. Prism guide 30. Square guide 31. Round guide 32. Slide shoe 33. - 34. Flat guide 35. Arrow direction 36. Arrow directions 37. Magazine 38. T-nut 39. Mounting screw 40. Slide (side) 41. Slide (top) 42. Clearance 43. Slide rail 44. Metal rail

Claims

1. Hunting or sporting firearm with a bolt carrier guided longitudinally displaceably on a receiver (5) or receiver of the firearm in the direction of fire (35), in particular a bolt housing (2) which is mounted on the receiver or on or in the receiver in the manner of a sliding guide (14, 15), characterized by the fact that Sliding elements (16, 20, 22, 24, 26, 32) are arranged in or on the sliding guide (14, 15, 40, 41).

2. Hunting or sporting weapon according to claim 1, characterized by the fact that at least two sliding elements (16, 20, 22, 24, 26, 32) arranged longitudinally at a distance from each other are present.

3. Hunting or sporting firearm according to claim 1 or 2, characterized by the fact that the sliding elements (16, 20, 22, 24, 26, 32) are arranged opposite each other on the sides of the locking carrier.

4. Hunting or sporting weapon according to claim 1 or 2, characterized by the fact thatthe sliding elements (16, 20, 22, 24, 26, 32) are arranged opposite each other on the sliding tracks of the system box (5) or the system sleeve.

5. Hunting or sporting firearm according to at least one of claims 1 to 4, characterized by the fact that the sliding element (16, 20, 22, 24, 26, 32) is made of a self-lubricating plastic material.

6. Hunting or sporting weapon according to claim 5, characterized by the fact that the self-lubricating plastic material of the sliding element (16, 20, 22, 24, 26, 32) consists of a modified cast polyamide produced on the basis of PA6G-OI, in which a mineral oil is incorporated during polymerization.

7. Hunting or sporting firearm according to at least one of claims 1 to 6, characterized by the fact that in the sliding guide (14, 15, 40, 41) at least one wiping lip is arranged for cleaning and / or lubricating the sliding guide or that the wiping lip is arranged as an edge on the sliding element.

8. Hunting or sporting firearm according to at least one of claims 1 to 7, characterized by the fact that For tilt-free guidance, a total of three sliding tracks (14, 15; 40, 41) are arranged at an angle of 90 degrees to each other on the side of the sliding element (16, 20, 22, 24, 26, 32), which slide on complementary sliding guides in the system box (5).

9. Hunting or sporting firearm according to at least one of claims 1 to 8, characterized by the fact that In a kinematic reversal of a sliding arrangement according to at least one of the preceding claims, the sliding elements (16, 20, 22, 24, 26, 32) are now arranged on the system box (5), which slide along complementary sliding guides on the closure housing (2).

10. Hunting or sporting firearm according to at least one of claims 1 to 9, characterized by the fact thatIn the central longitudinal line of the closure carrier, a central and central arrangement of sliding elements (16, 20, 22, 24, 26, 32) is arranged, which are supported on a central, central sliding track (14, 15, 40, 41) on the system box (5) and slide along it.

11. Hunting or sporting weapon according to at least one of claims 1 to 10, characterized by the fact that the sliding guide with the sliding elements (16, 20, 22, 24, 26, 32) are arranged on metal rails that extend the locking carrier longitudinally forwards and / or backwards.

12. Hunting or sporting firearm according to at least one of claims 1 to 11, characterized by the fact that the sliding elements (16, 20, 22, 24, 26, 32) are designed as longitudinally oriented, elongated plastic strips, which have a preferred length of about 20 mm and a thickness of 5 mm.

13. Hunting or sporting firearm according to at least one of claims 1 to 12, characterized by the fact thatthe sliding elements (16, 20, 22, 24, 26, 32) are replaceable.

14. Hunting or sporting firearm according to at least one of claims 1 to 13, characterized by the fact that the sliding element (16, 20, 22, 24, 26, 32) is held in an associated bore (18) on the underside of the locking carrier by at least one pin (17).

15. Hunting or sporting firearm according to at least one of claims 1 to 14, characterized by the fact that Instead of the arrangement of singular sliding elements (16, 20, 22, 24, 26, 32), the entire profile rail on the bottom side of the closure housing (2) now consists of the self-lubricating plastic material of a sliding element, which is in sliding engagement with a complementary metal rail on the top of the system box (5) and slides along it.

16. Hunting or sporting firearm according to at least one of claims 1 to 15, characterized by the fact thatthe locking housing is designed as a rotatable and / or longitudinally displaceable cylinder lock, which is supported by sliding elements (16, 20, 22, 24, 26, 32) on the complementary tracks in the system sleeve.

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