Dust cover assembly for a firearm, including a dust cover, a first bushing and a second bushing, a pin guided in the first bushing with pin end and a cover spring. The dust cover assembly lends itself to tool-free mounting/dismounting and disassembly/assembly, as the assembly is configured so that the pin is received spring-preloaded in the axial direction at least in the first bushing and a guide extension for interacting with a guide groove and an insertion groove of the first bushing is formed on the pin. An insertion groove can be formed parallel to the axis of rotation of the pin on the inside of the first bushing, which begins at the outer end of the bushing and ends at the guide groove and is connected to the guide groove.

Dust cover assembly for a firearm, including a dust cover, a first bushing and a second bushing, a pin guided in the first bushing with pin end and a cover spring. The dust cover assembly lends itself to tool-free mounting/dismounting and disassembly/assembly, as the assembly is configured so that the pin is received spring-preloaded in the axial direction at least in the first bushing and a guide extension for interacting with a guide groove and an insertion groove of the first bushing is formed on the pin. An insertion groove can be formed parallel to the axis of rotation of the pin on the inside of the first bushing, which begins at the outer end of the bushing and ends at the guide groove and is connected to the guide groove.

Implementations of a shoulder stock assembly for a pistol are provided. The shoulder stock assembly is configured for use in attaching a shoulder stock to a handgun, thereby providing additional stability to a user aiming and firing the handgun. In some implementations, the shoulder stock assembly is also configured to position an optical sight (e.g., a reflex type sight) so that is can be used to aim the handgun. In some implementations, the shoulder stock assembly comprises a chassis configured to be secured to a frame of a handgun and used to position an optical sight over a slide of the handgun, a shoulder stock secured to the chassis by a hinge assembly, a removable backstrap assembly configured to further secure the chassis to the handgun frame, and a charging handle that can be used to manually operate the slide of the handgun or another suitable combination thereof.

Implementations of a shoulder stock assembly for a pistol are provided. The shoulder stock assembly is configured for use in attaching a shoulder stock to a handgun, thereby providing additional stability to a user aiming and firing the handgun. In some implementations, the shoulder stock assembly is also configured to position an optical sight (e.g., a reflex type sight) so that is can be used to aim the handgun. In some implementations, the shoulder stock assembly comprises a chassis configured to be secured to a frame of a handgun and used to position an optical sight over a slide of the handgun, a shoulder stock secured to the chassis by a hinge assembly, a removable backstrap assembly configured to further secure the chassis to the handgun frame, and a charging handle that can be used to manually operate the slide of the handgun or another suitable combination thereof.

An intrinsically safe firearm may include a handle and a frame connected by a pivot pin. One or more latches of the firearm can temporarily fix the firearm in a stowed orientation or a deployed orientation. In the deployed orientation, a magazine of the firearm can be removed from the handle; a slide of the firearm can be removed from the frame; a magazine safety allows a firing pin to strike a primer of a round in the firearm; and a trigger of the firearm is accessible to discharge the round in the firearm. In the stowed orientation, the magazine is not removable from the handle; the slide is not removable from the frame; the magazine safety prevents the firing pin from striking the primer; and the trigger of the firearm is not accessible.

A modular firearm grip assembly has a frame defined by a front grip strap and a rear grip strap. The front grip strap defines a front lateral attachment point and rear lateral attachment point, and the rear grip strap has a first attachment coupling interface. A grip extension defined by a front extension strap and a rear extension strap is coupled to the frame at the respective one of the front lateral attachment point and the rear lateral attachment point thereof. The grip extension includes a second attachment coupling interface engaged to the first attachment coupling interface of the frame.

The disclosure of the present invention relates to a rifle barrel vibration dampener or to a vibration dampener sleeve configured to be fit over a portion of a rifle barrel in order to control the harmonic frequency vibration amplitude within the barrel, improving shot group accuracy; while additionally, improving the appearance of the rifle and protecting the outside surface of the rifle barrel.

Systems, methods, and apparatus for an ejection port cover with a multifunctional pin. In one embodiment, a fixed pin and a spring-loaded pin both mate with hinge openings at ends of the ejection port. The spring-loaded pin can be longitudinally biased by a spring, such as a torsion spring. This same spring can perform biasing of the ejection port cover toward an open position as well as biasing of a flag extending from the spring-loaded pin into a locked position when the ejection port cover is not installed.

Systems, methods, and apparatus for an ejection port cover with a multifunctional pin. In one embodiment, a fixed pin and a spring-loaded pin both mate with hinge openings at ends of the ejection port. The spring-loaded pin can be longitudinally biased by a spring, such as a torsion spring. This same spring can perform biasing of the ejection port cover toward an open position as well as biasing of a flag extending from the spring-loaded pin into a locked position when the ejection port cover is not installed.

A machine gun top cover assembly includes a top cover door attached to a main housing. The top cover assembly defines a rear transverse track section and a front transverse track section for guiding bolt assemblies of the gun. As the machine gun rotor assembly rotates, the rear track section prevents the bolt assemblies from moving into position for firing, and the front track section guides the bolt assemblies into position for firing. A selector switch on the top cover door selects between: (i) a safe position wherein, each of the bolt assemblies are sequentially directed into the rear track section; and (ii) a fire position wherein the bolt assemblies are directed into the front track section. The top cover assembly can include a solenoid for moving the selector switch between the safe position and the fire position in response to an electrical control signal.