Device for quick change of magazine

Abstract

A device for quick replacement of the magazine of a hand-held automatic small arms weapon with a pit bull configuration, which device relates to military equipment and is intended to minimize the time for replacing a spent magazine and increase the number of ammunition that can be carried. Once the magazine is spent, the bolt rests on the bolt stop. In the embodiment involving the bolt stop, the shooter uses a control key to remove the active magazine. Upon return, the control key releases a pivoting tray fixed by a latch spring and the pivoting tray moves into a lower position. The shooter grabs the part of the spare magazine that protrudes from the butt and moves the spare magazine into the magazine opening. The bolt stop releases the bolt, which, under the action of the bolt spring advancing, grips one round from the active magazine and drives it into the chamber. Firing can be resumed immediately.

Description

Technical Field

[0001] A device for quickly changing the magazine (hereinafter referred to as DQRM-BP) of a handheld automatic small arms with a bulldog-like configuration (hereinafter referred to as HASA-BP), the device relating to military equipment - small arms - handheld automatic small arms (hereinafter referred to as HASA) - assault rifles and submachine guns - auxiliary devices and mechanisms for facilitating and automating firing.

[0002] Section F: "Mechanical Engineering; Lighting; Heating; Engines and Pumps; Weapons and Ammunition; Demolition Work"

[0003] F41 "Weapon"

[0004] The F41A's "common functional features or structural elements of small arms and artillery (such as cannons): the support or mechanism of the small arms or artillery piece."

[0005] F41A 9 / 00 "Feeding or loading ammunition; magazines; magazine extraction guide"

[0006] F41A 9 / 05 "...gradually located"

[0007] The DQRM-BP is an auxiliary device for the HASA-BP and is used to equip the HASA-BP with rectangular box-shaped magazines in order to improve its operational efficiency by increasing the number of magazines that can be carried and reducing the time spent replacing service magazines with spare magazines. Background Technology

[0008] In the existing technology, the authors have not found any direct analogue solutions.

[0009] According to the prior art of the present invention, a search has been conducted for technical solutions for the first and second tasks, the first task being to increase the capacity of the magazine or the number of magazines carried directly on the weapon; and the second task being to reduce the time required to change magazines or use devices to organize the continuous supply of magazines into the HASHA-BP barrel.

[0010] The author investigated the following technical solutions in the existing technology:

[0011] 1. EMR44 submachine gun, made in Germany

[0012] 2. Vesely V-42 submachine gun, made in the UK.

[0013] 3. MR-40 / 1 submachine gun, made in Germany

[0014] 4. UD M42 submachine gun, made in the USA.

[0015] 5. PP-2000 submachine gun (in the implementation version, it comes with a spare magazine instead of a stock), manufactured in the Russian Federation.

[0016] 6. Invention Patent SU1607543 AI-Magazine Magazine Assembly

[0017] 7. Invention Patent SU1762096A1 - Segmented Magazine for Small Arms

[0018] 8. Invention Patent RU2155923C1 - High-Capacity Magazine

[0019] 9. Invention Patent RU2158890C1 - Magazine for Small Arms

[0020] Invention Patent RU2191338C2 - Assault Rifle, Slant Locking Device, and Sight with Side Specs (Implementation Scheme)

[0021] 10. Invention Patent RU2213313C2 - Platform Mechanism

[0022] 11. Invention Patent RU2254539C1 - Small Arm with Continuous Firing Mode (Implementation Scheme), Functional Components of Small Arm, and Method for Simultaneously Reducing Recoil and Sound Level of Small Arm. Invention Patent RU2373475C2 - Structure of Self-Disassembling Magazine for Firearms.

[0023] 12. Invention Patent RU2451892C2 - Device for Supplying Ammunition

[0024] 13. Invention Patent RU2517038C1 - Automatic Weapon - 3 / Implementation Scheme /

[0025] 14. Invention Patent RU251957ICI-Automatic Weapon-4 / Implementation Scheme /

[0026] 15. Invention Patent RU2553536C1 - Automatic Weapon - 9 / Implementation Scheme /

[0027] 16. Invention Patent RU2576853C1 Small Weapon-2

[0028] 17. Invention Patent US20100126053A1 - Ammunition Magazine with Four Stacks of Ammunition

[0029] 18. Patent US20130047481 AI - Ammunition magazine with two or more supply ports

[0030] 19. US Patent 3140554A - Double-Series Positioning Device for Feeding Magazines

[0031] 20. Invention Patent US3196568A - Switching Device for Tandem Magazine Supply System

[0032] 21. Invention Patent US3604142A - Four-Hook Ring Magazine

[0033] 22. Invention Patent US4428137A - Magazine Magazine

[0034] 23. Invention Patent US8683725B2 - Barrel Receiver Fixing Unit for Small Weapon Magazine

[0035] 24. Invention Patent RU2519571C1 - Automatic Weapon - 4 / Implementation Scheme /

[0036] 25. Invention Patent RU2729139C1 "Mechanism for Quick Magazine Replacement"

[0037] Conclusion: The design solution proposed in invention patent RU2729139C1 "Device for Quick Magazine Change" (hereinafter referred to as DQRM) is the most similar solution to DQRM-BP in the prior art.

[0038] Features of DQRM-BP and similar solutions in DQRM;

[0039] —Both devices belong to the HASA field;

[0040] —In these two devices, there are two magazines that serve as part of the weapon: a service magazine and a spare magazine;

[0041] —In both of these systems, service spare magazines are sequentially installed in the weapon along its main axis;

[0042] —In both of these devices, the service magazine is secured with a latch;

[0043] —In both devices, the spare magazine is secured by a spring-loaded guide that enters the groove in the ridge with the magazine recess;

[0044] —In both devices, the spare magazine is moved to the HASA opening by a spring-loaded guide that has entered a groove in the grooved ridge on the magazine;

[0045] —In both devices (in one implementation of each device), the service magazine is removed from the HASA opening by pressing the device control key;

[0046] —In both devices (in one embodiment of each device), the bolt stop is kinetically connected to a means that provides automatic extraction of the service magazine from the HASA opening after the bullets have been used up during firing;

[0047] —In the event of a malfunction, neither device prevents the HASA magazine from being replaced in the conventional manner.

[0048] The main similarities between the DQRM-BP and the DQRM are that both devices are designed to perform two of the same tasks in HASA: speeding up magazine changes and increasing the number of ammunition that can be carried.

[0049] Meanwhile, the differences between DQRM and DQRM-BP are as follows:

[0050] —DQRM is much simpler in structure;

[0051] —DQRM is only used for the classic HASA construction;

[0052] —The spare magazine is located below the HASA barrel in front of the HASA opening and along the HASA barrel;

[0053] —The spring-loaded guide is fixed in the housing of the device below the HASA barrel along the longitudinal axis of the HASA barrel;

[0054] —The spare magazine is fixed below the HASA barrel along the HASA barrel axis;

[0055] —When the service magazine is installed, the spare magazine moves rearward along the HASA barrel and only along the spring-loaded guide to the HASA opening, while being secured by entering the groove of the grooved ridge through the spring-loaded guide.

[0056] The difference between DQRM-BP and DQRM is:

[0057] —DQRM-BP has a more complex design;

[0058] —DQRM-BP is only used for HASA-BP;

[0059] —The design features a pivot tray located in the HASA-BP stock into which a spare magazine is mounted, the pivot tray having a spring-loaded guide, and a spring for the pivot tray, a spring-loaded latch for the pivot tray, and a spring-loaded latch driver for the pivot tray.

[0060] —The design features a ridge on the magazine for moving the magazine along a groove;

[0061] —The design features a recess for mobile service magazines;

[0062] —The design features guide grooves for moving spare magazines;

[0063] —The device control key is also used to disengage the pivot tray with the spring-loaded guide from the pivot tray spring-loaded latch and to move it to the lower position due to the action of the pivot tray spring;

[0064] —The spring-loaded guide is directly mounted in the pivot tray with the spring-loaded guide;

[0065] —The spring-loaded guide is the initial part of the main line that transports the spare magazine to the HASA-BP opening;

[0066] —As the guide groove for moving the spare magazine interacts with the ridge on the magazine for moving the magazine along the groove, the guide groove becomes the second part (continuation) of the main line for transporting the spare magazine to the HASA-BP opening;

[0067] —In one embodiment, the pivot tray with spring-loaded guide is removed from the spring-loaded latch of the pivot tray and, upon pressing a control key, is switched to the lower position by the pivot tray spring by setting the bolt to the bolt stop, the bolt setting being achieved by the pivot tray spring-loaded latch actuator acting on the pivot tray spring-loaded latch via a motion connection.

[0068] The main and significant difference between the technologies advocated by DQRM-BP and DQRM-BP is that DQRM-BP is designed for use with HASA-BP, while DQRM is designed for use with the classic HASA configuration. Summary of the Invention

[0069] Using DQRM-BP in HASA-BP allows users to solve the following tasks:

[0070] 1. When the magazine is depleted during firing, the service magazine can be reliably and quickly replaced with the spare magazine in semi-automatic mode;

[0071] 2. To help the shooter overcome the "last bullet" syndrome;

[0072] 3. While changing the service magazine with the spare magazine, keep the shooter focused on firing at the impact target;

[0073] 4. Increase the number of ammunition magazines carried on the HASA-BP;

[0074] 5. Increase the duration of sustained fire impact on the entire enemy force.

[0075] The technical feature of DQRM-BP is the use of an additional HASA-BP component, which helps to:

[0076] 1. Speed ​​up the replacement of used service magazines with spare magazines;

[0077] 2. Minimize firing interruptions for the HASA-BP;

[0078] 3. The number of HASA-BP ammunition has been tripled.

[0079] Composition of existing technology:

[0080] The HASA-BP includes a barrel receiver with a barrel, a bolt, a bolt carrier with a return spring, a stock, a firing control holder located in front of the magazine, a firing and triggering mechanism, a magazine key latch, and an automatic bolt stop.

[0081] Composition and operation of the present invention:

[0082] The latest technology in the field is the DQRM-BP, whose outer casing is located in the stock of the HASA-BP. After the DQRM-BP is installed in the HASA-BP, there are two straight-box magazines: one is the service magazine in the opening of the HASA-BP, and the other is the spare magazine inside the DQRM-BP casing in a pivot tray with a spring-loaded guide.

[0083] DQRM-BP( Figure 1 The working method is as follows:

[0084] After the service magazine is emptied during firing, the HASA-BP stock automatically locks back.

[0085] In one implementation, the shooter presses the device control key, releasing the service magazine. The service magazine is pushed out of the HASA-BP opening by a spring that removes it, moving along its guide groove to reposition the magazine. In another variant, the DQRM-BP is activated by a bolt stop (kinematically connected to the device control key), which acts on the device control key after the service magazine is emptied when the bolt is locked back. The lever of the device control key releases the empty service magazine from the latch via a kinematic connection, and the spring for removing the service magazine pushes the empty service magazine out of the HASA-BP opening. Figure 2 ).

[0086] Then, under the action of the device control key reset spring, it returns to its original position. During the reverse stroke, the device control key acts on the spring-loaded latch of the pivot tray via a motion connection through the spring-loaded latch driver of the pivot tray, disengaging the pivot tray with spring-loaded guide from engagement with the spring-loaded latch of the pivot tray. The pivot tray with spring-loaded guide switches from the upper position to the lower position under the action of the pivot tray spring. As a result, the edge of the spare magazine protrudes from the DQRM-BP housing ( Figure 3 ).

[0087] The shooter moves the spare magazine forward and upward in an arc by applying pressure to the extended portion of the magazine with their hand. Figure 4The spare magazine first moves within the DQRM-BP housing along the spring-loaded guide of the pivot tray with a spring-loaded guide, and then along the guide groove for moving the spare magazine, replacing the service magazine. With the aid of the service magazine lock, and simultaneously acting on the bolt stop, the spare magazine is secured in the HASA-BP opening.

[0088] The bolt stop releases the bolt, which, under the action of the bolt spring, moves forward, clamping the upper magazine from the newly installed service magazine and striking it into the chamber. The HASA-BP is now reloaded and ready to fire; pressing the trigger will allow immediate re-firing (see [link]). Figure 5 ).

[0089] When convenient, the shooter installs a new spare magazine in the space vacated in the pivot tray (see...). Figure 6 Furthermore, once in the pivot tray, the spare magazine interacts with the spring-loaded guide under the pressure of the shooter's hand. To interact with the spring-loaded guide, a grooved ridge on the magazine pulls the guide open, and as the ridge moves further upward, the guide enters a groove in the grooved ridge, further ensuring the newly installed spare magazine remains in the pivot tray with the spring-loaded guide.

[0090] Then, under the pressure of the shooter's hand on the newly installed spare magazine, the pivot tray with spring-loaded guide compresses the pivot tray spring and moves upward, and when it reaches the uppermost position, it is secured in the pivot tray by the pivot tray latch.

[0091] Completed using a loop in DQRM-BP. For example... Figure 1 As shown, the HASA-BP is reset to its initial state and ready to fire.

[0092] The basic characteristics of DQRM-BP are as follows:

[0093] 1. Use DQRM-BP with the straight-box magazine HASA-BP;

[0094] 2. The DQRM-BP shell is embedded into the HASA-BP stock, which maintains the previous dimensions of the HASA-BP, and this is important;

[0095] 3. The DQRM-BP contains a pivot tray with a spring-loaded guide, a pivot tray spring for switching it from the upper position to the lower position, and a pivot tray spring-loaded latch for securing it in the upper position.

[0096] 4. The DQRM-BP contains a spring-loaded guide fixed in a pivot tray with parallel spring-loaded guides, designed so that when a spare magazine is installed, the spare magazine is held by a grooved ridge.

[0097] 5. The HASA-BP magazine has a grooved ridge that allows the spare magazine to be secured in a pivot tray with spring-loaded guides when the magazine is changed, and the spare magazine also moves along them.

[0098] 6. A special spring is present in the DQRM-BP for removing the reset magazine;

[0099] 7. The DQRM-BP contains a device control key that opens and closes the service magazine lock and pivot tray latch. This latch is activated by the shooter pressing it down, or, in another embodiment, by the bolt stop when triggered after the service magazine has been emptied. In this case, the used service magazine is removed from the weapon opening, and the pivot tray automatically switches to a lower position, allowing the shooter to immediately install a spare magazine in place of the service magazine.

[0100] 8. The DQRM-BP contains a reset spring for the device control key, which, upon being pressed by the shooter or, in another embodiment, is reset to its original position via a motion connection on the side of the bolt stop. This causes the spring-loaded latch actuator of the pivot tray to act on the pivot tray latch during the reverse stroke of the device control key, disengaging the pivot tray with the spring-loaded guide from the spring-loaded latch. Under the action of the spring in the pivot tray, the pivot tray, together with the spare magazine fixed therein on the spring-loaded guide, switches from the upper position to the lower position.

[0101] The technical results obtained using DQRM-BP on HASA-BP are characterized by:

[0102] 1. Increase the magazine change speed as much as possible;

[0103] 2. The number of ammunition that can be carried has doubled;

[0104] 3. The duration of continuous fire exposure of the HASA-BP to the enemy is increased when equipped with the DQRM-BP;

[0105] The service magazine is forcibly removed from the HASA-BP opening only after the shooter presses the device control key, or in another embodiment, due to the impact of the bolt stop, which is kinetically connected to the device control key. Attached Figure Description

[0106] Figure 1The image depicts a DQRM-BP in operational order with a HASA-BP equipped with two magazines: one service magazine and one spare magazine.

[0107] This figure shows a general view of a HASA-BP equipped with a DQRM-BP ready for firing, illustrating the concept of the invention, its structure, the location of DQRM-BP elements and components on the HASA-BP, and the positions of the service magazine and spare magazine therein. All components of the DQRM-BP are also shown here:

[0108] 1. HASA-BP - DQRM-BP installed on top of it;

[0109] 2. Housing - It is housed inside the stock of the HASA-BP and serves to accommodate almost all the major units and components of the DQRM-BP;

[0110] 3. Pivot tray with spring-loaded guide – it is housed within the DQRM-BP housing and designed for mounting spare magazines therein. Figure 1 Position 15), and move it to the position of the service magazine ( Figure 1 Position 9);

[0111] 4. Pivot tray spring - This provides a spring-loaded guide for switching the pivot tray to the lower position. Figure 3 It is triggered after the DQRM-BP control key acts on the pivot tray through the pivot tray spring-loaded latch driver, causing the pivot tray to disengage from the spring-loaded latch.

[0112] 5. Spring-loaded latch of the pivot tray - which provides retention of the pivot tray in the upper position;

[0113] 6. Actuator of pivot tray spring-loaded latch - which acts kinetically on the pivot tray spring-loaded latch and disengages the pivot tray from the pivot tray spring-loaded latch;

[0114] 7. The control key of the device - which is used by being pressed by the shooter, or in another embodiment, after the bolt stop is activated by the device control key via a kinetic connection.

[0115] It provides: first, the removal of the used service magazine, and second, the switching of the pivot tray with spring-loaded guide to the lower position, in which the spare magazine is ready to be installed in the appropriate position of the service magazine;

[0116] 8. Reset spring for device control key - after the device control key is pressed by the shooter, or in another embodiment, after the motion connection on the side of the bolt stop acts on the device control key, it resets the device control key to its original position.

[0117] 9. Service magazine - It is designed for supplying ammunition to the HASA-BP during firing;

[0118] 10. A ridge or groove on the magazine for securing the service magazine – which interacts with the service cartridge magazine lock. Figure 1 Position 11), 11) so as to retain the service magazine in the HASA-BP opening ( Figure 1 Position 9);

[0119] 11. Service magazine lock - This locks the service magazine into the HASA-BP opening ( Figure 1 Position 9);

[0120] 12. Ridge on the magazine for moving the magazine along the groove - when a spare magazine is installed to replace the service magazine, and when the service magazine is removed from the HASA-BP opening after use, it provides movement of the magazine along the groove;

[0121] 13. A recess for moving the service magazine – which provides the desired direction of movement and allows for reliable removal of the service magazine from the HASA-BP opening;

[0122] 14. Spring for ejecting the service magazine - which provides ejection of the service magazine from the HASA-BP opening;

[0123] 15. Spare magazine - It is located in a pivot tray with a spring-loaded guide, which provides an increased number of ammunition that can be carried and allows for quick replacement of the service magazine after it is emptied;

[0124] 16. A grooved ridge on the magazine for interacting with a spring-loaded guide - located on the rear wall of a box-shaped rectangular magazine and designed to securely hold the spare magazine within a pivot tray with a spring-loaded guide, and to move the spare magazine along the spring-loaded guide of the pivot tray during the initial phase of the pivot tray movement when changing magazines.

[0125] 17. Guide groove for moving spare magazine - which is manufactured in the DQRM-BP housing, and provides the direction of movement required for the spare magazine to enter the HASA-BP opening during the final stage of moving the spare magazine when the spare magazine is installed in place of the extracted service magazine.

[0126] 18. Bolt stop - In one embodiment of the DQRM-BP, it is used to automate the process of removing the service magazine from the HASA-BP opening after it has been emptied, and to switch the pivot tray to the lower position by action on the device control key. Figure 1 Position 7). It also keeps the bolt in the open position until a new service magazine is installed.

[0127] Figure 2 The figure depicts the moment the service magazine is removed after the shooter presses the device control key or after the motion connection on the side of the bolt stop acts on the device control key. This figure provides a visual representation of the first stage of the magazine-changing process designed for the DQRM-BP: removal of the service magazine after the bolt stop is triggered or after the shooter's finger presses the device control key.

[0128] Figure 3 The following moment during magazine changing is depicted: the pivot tray is switched from the upper position to the lower position using a spring-loaded guide that holds the spare magazine in place. This allows the shooter to move the spare magazine further into the HASA-BP opening by using one hand to operate on the magazine edge extending from the stock.

[0129] Figure 4 The process of moving the spare magazine from the DQRM-BP to the service magazine position and into the HASA-BP opening is depicted. The direction of movement of the spare magazine is indicated by arrows.

[0130] Figure 5 The image depicts the moment the spare magazine, intended to replace the service magazine, is installed. The pivot tray remains in the lower position. The tray is empty.

[0131] Figure 6 The final stage of using the DQRM-BP is depicted. The shooter, at his convenience, uses a spring-loaded guide to mount a new spare magazine on the pivot tray. The direction of this action is indicated by arrows.

[0132] therefore, Figures 1 to 6 The attached sequence of figures shows the complete cycle of the DQRM-BP operation. Detailed Implementation

[0133] The best application of the DQRM-BP is for its use in the modernization of existing systems, as well as for the creation of new and improved HASA-BP straight-box magazine prototypes with its assistance.

[0134] Industrial applicability of the invention:

[0135] The authors have established a working model for DQRM-BP and verified its operability in an open-access advertising video released on the internet. The video demonstrates the implementation of all the technical tasks assigned to the inventors:

[0136] 1. Install a spare magazine on the HASA-BP;

[0137] 2. Convenient, reliable, and quick magazine replacement. The technical and economic benefits of the DQRM-BP include:

[0138] 1. After installing the DQRM-BP on the HASA-BP, its combat characteristics are significantly improved due to the following:

[0139] 1.1 Reduce the time required to change magazines;

[0140] 1.2 Increase the number of bullets that can be carried in the magazine;

[0141] 2. Compared to the increased quality effects (improved combat characteristics) of its use in combat, the cost of manufacturing and installing the DQRM-BP on the HASA-BP is negligible due to the simplicity of its design.

[0142] The different effects of using DQRM-BP include:

[0143] 1. Compared to the same weapon without the upgraded DQRM-BP, using the HASA-BP increases quality and effectiveness due to its improved combat characteristics;

[0144] 2. Combat use has increased the quality of military units equipped with the HASA-BP upgrade implementation scheme of DQRM-BP;

[0145] 3. Thanks to the improved combat characteristics compared to conventional HASA-BP samples, its combat usability has been enhanced, increasing shooters' confidence in the capabilities of HASA-BP equipped with DQRM-BP:

[0146] 3.1. Minimize magazine change time, even for shooters using the HASA-BP equipped with DQRM-BP who do not have the skill of quick magazine change, by making the magazine change operation as simple and reliable as possible through changes to existing technology.

[0147] 3.2. Increase the number of ammunition that can be carried;

[0148] 3.3 Help shooters overcome the "last bullet" syndrome.

Claims

1. An apparatus for quickly changing the magazine of a handheld automatic small arms with a bulldog configuration: a spare magazine located in a pivot tray with a spring-loaded guide moves along the spring-loaded guide and along a guide groove for moving the spare magazine to a position where a service magazine is positioned in the opening of the handheld automatic small arms, the apparatus comprising: - The housing of the device, which is located in the stock of a handheld automatic small weapon; - Pivoting tray with spring-loaded guide; -The spring of the pivot tray; -The spring-loaded latch of the pivot tray; - The actuator of the pivot tray spring-loaded latch; - A guide groove for moving the spare magazine; - A groove for moving the service magazine; - Device control keys; - The reset spring of the control key of the device; - The lock of the service magazine; - A spring for removing the service magazine; - The ridge of the service magazine for moving the service magazine along the groove for moving the service magazine; - A ridge or groove on the service magazine for securing the service magazine; - A grooved ridge on the spare magazine for interacting with the spring-loaded guide; The device is designed for: -The spare magazine is secured in the pivot tray as the spring-loaded guide enters the groove of the grooved ridge on the spare magazine for interaction with the spring-loaded guide; - After pressing the control key of the device, the empty service magazine is removed using the spring for removing the service magazine. The spring for removing the service magazine pushes the service magazine out of the handheld automatic small weapon opening along the groove for moving the service magazine. - After the device control key is kinetically engaged by the spring-loaded latch actuator of the pivot tray, a spare magazine is installed in the opening of the handheld automatic small weapon. When the device control key is moved back to its original position due to the return spring, the pivot tray with the spring-loaded guide in the upper position is disengaged from the spring-loaded latch of the pivot tray. As a result, the pivot tray with the spring-loaded guide moves to the lower position under the action of the pivot tray spring, and the lower edge of the spare magazine installed in the pivot tray with the spring-loaded guide partially protrudes from the housing of the device placed in the stock of the handheld automatic small weapon. The shooter moves the spare magazine along the spring-loaded guide of the pivot tray by acting on the lower part of the spare magazine protruding from the stock, and further moves it along the guide groove for moving the spare magazine by the edge on the spare magazine for moving the spare magazine along the guide groove, until the spare magazine is secured in the opening of the handheld automatic small weapon by the ridge or groove of the service magazine lock. The newly installed service magazine acts mechanically on the bolt stop for releasing the bolt, which moves forward under the action of the bolt spring, clamping the upper magazine from the newly installed service magazine and striking it into the chamber. This allows the shooter to immediately continue firing, and then, when convenient for the shooter, a new spare magazine is installed in the pivot tray with a spring-loaded guide, thereby resetting the device to the ready-to-fire position.

2. The apparatus of claim 1, wherein, After the bolt stop is triggered by emptying the service magazine, the device control key is activated by the bolt stop, which is kinetically connected to the device control key.

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