A stock assembly for use with a firearm includes a stock assembly body having a forward end, an opposing rear end, and a bottom portion defined between the forward end and rear end. A locking mechanism may be disposed on the stock assembly body. A rear butt member may be adjustably positionable on the rear end of the stock assembly body and include a housing defining an end surface forming a base region and a protruding region extending from the base region. The rear butt member may be adjustably positionable relative to the stock assembly body to position the rear butt member base region on a surface extending forward of a user and the protruding region proximate the user for operation of the firearm by the user.

A stock assembly for use with a firearm includes a stock assembly body having a forward end, an opposing rear end, and a bottom portion defined between the forward end and rear end. A locking mechanism may be disposed on the stock assembly body. A rear butt member may be adjustably positionable on the rear end of the stock assembly body and include a housing defining an end surface forming a base region and a protruding region extending from the base region. The rear butt member may be adjustably positionable relative to the stock assembly body to position the rear butt member base region on a surface extending forward of a user and the protruding region proximate the user for operation of the firearm by the user.

The present folding stock adapter can be used with many types of military-type assault rifles that typically comprise a receiver extension, buffer and action spring. The present folding stock adapter can be used to add a folding capability to a standard stock allowing it to fold against a rifle's receiver when the weapon is not in use, thus reducing the overall length of the weapon. This reduction in length can facilitate its maneuverability, storage and transport in cramped quarters. The present device can also allow for the quick unfolding of the stock in order to allow the weapon to function and be fire normally.

The present folding stock adapter can be used with many types of military-type assault rifles that typically comprise a receiver extension, buffer and action spring. The present folding stock adapter can be used to add a folding capability to a standard stock allowing it to fold against a rifle's receiver when the weapon is not in use, thus reducing the overall length of the weapon. This reduction in length can facilitate its maneuverability, storage and transport in cramped quarters. The present device can also allow for the quick unfolding of the stock in order to allow the weapon to function and be fire normally.

A pistol brace includes a main frame, a forward hand grip, an adjustable front bracket attaching the main frame to the forward hand grip, a pistol muzzle guard extending forwardly at a top of the hand grip, a stock frame member attached to a rear of the main frame by an adjustable stock bracket having a stock pivot hinge for collapsing and extending the stock frame member. A stock adjustment slide allows for adjustment of the length of the stock to accommodate different size operators. A collapsible butt stock is pivotally fitted to an end of the stock frame member. A rail mount above the forward hand grip attaches to a picatinny rail on an underside of the pistol barrel and a pistol grip mounting mechanism and a pistol locking mechanism secure the grip of the pistol to the main frame.

A pistol brace includes a main frame, a forward hand grip, an adjustable front bracket attaching the main frame to the forward hand grip, a pistol muzzle guard extending forwardly at a top of the hand grip, a stock frame member attached to a rear of the main frame by an adjustable stock bracket having a stock pivot hinge for collapsing and extending the stock frame member. A stock adjustment slide allows for adjustment of the length of the stock to accommodate different size operators. A collapsible butt stock is pivotally fitted to an end of the stock frame member. A rail mount above the forward hand grip attaches to a picatinny rail on an underside of the pistol barrel and a pistol grip mounting mechanism and a pistol locking mechanism secure the grip of the pistol to the main frame.

The invention provides improved modular gun stocks and their methods of manufacture. Advantageously, gun stocks of the invention require fewer parts than conventional gun stocks. The lower stock supports of the improved modular gun stocks can be removed and replaced in multiple ways so that a variety of gun stocks can be created as desired. The invention also eliminates the undesirable rattling noise that modular gun stocks often have after assembly.

The invention is focused on simplifying the buttstock design and improving its reliability. The technical result is achieved by the construction of the adjustable swivel cheek piece buttstock, that includes a body with a spring-loaded link in the base, which interacts with the trigger button, located at the front of the housing, which interacts with a swivel platform with a cheek piece mounted on it, a platform locking device, and a torsion spring, one end of which is fixed to the axle located in the stock body, and the second end is fixed to the swivel platform. The number of parts in the proposed model is significantly reduced, the energy of the spring is transmitted not from the driving pinion to the driven one, as in the prototype, but directly from the axle to the swivel platform. Thus, the reliability of the mechanism is increased.

The invention is focused on simplifying the buttstock design and improving its reliability. The technical result is achieved by the construction of the adjustable swivel cheek piece buttstock, that includes a body with a spring-loaded link in the base, which interacts with the trigger button, located at the front of the housing, which interacts with a swivel platform with a cheek piece mounted on it, a platform locking device, and a torsion spring, one end of which is fixed to the axle located in the stock body, and the second end is fixed to the swivel platform. The number of parts in the proposed model is significantly reduced, the energy of the spring is transmitted not from the driving pinion to the driven one, as in the prototype, but directly from the axle to the swivel platform. Thus, the reliability of the mechanism is increased.

A firearm stock is disclosed with an adjustable cheek riser, which includes an elevation mechanism and a cheek plate attached to a rising mechanism. In this manner, the cheek plate is adjustable in the vertical direction to provide fine adjustment to the height of the cheek plate with respect to the firearm stock. Aspects of the firearm stock include an adjustable stock that can provide adjustability for various firearms with regard to stock position and cheek plate position.