A training method and apparatus are disclosed. The training method may include converting a firearm capable of firing live ammunition to a pneumatic training device incapable of firing live ammunition. The training method may further include cycling a pneumatic training device through one or more cycles. Each of the cycles may simulate an actual firing of the firearm. Each of the cycles may also include triggering a trigger assembly of the pneumatic training device, using a charge of a pressurized gas to reset the trigger assembly, and advancing a counter of the pneumatic training device. After a certain number of cycles have been completed, a next cycle may be attempted, but not completed. Accordingly, the training method may enable a user to safely and realistically practice reloading, jam or malfunction clearing, or the like.

A modular handguard device configured to be slidably mated to an outer surface of an existing or affixed handguard. The handguard of the present invention may be configured to mate with any handguard to provide an extension of the handguard for purposes including mitigation of detectable heat signature, operator safety and increased reconfigurability of firearms for mission specific needs.

A modular handguard device configured to be slidably mated to an outer surface of an existing or affixed handguard. The handguard of the present invention may be configured to mate with any handguard to provide an extension of the handguard for purposes including mitigation of detectable heat signature, operator safety and increased reconfigurability of firearms for mission specific needs.

A trigger unit for a firearm, including a hammer rotatable about a hammer axis and prestressable by a hammer spring, a trigger lever rotatable about a trigger axis, the trigger lever has a trigger and a trigger rear, which receives at least one interrupter. A sear is rotatably mounted about a sear axis and prestressable by a sear spring. The sear axis and the trigger axis coincide, and the sear has a bearing recess for receiving and limited rotation about a disconnector axis of a disconnector pivot formed on the underside of the disconnector, the bearing recess being formed surrounding the disconnector pivot at least partially in the direction of rotation about the disconnector axis.

Receiver system for a bolt action firearm, comprising: a receiver comprising a forward end adapted to receive a barrel and a rearward end arranged to receive a breech bolt in a boltway provided in said receiver; a breech bolt adapted to slide linearly in said boltway and to lock to said receiver by rotation when said breech bolt is in a closed position; a buttstock interface block attached at a rearward end of said receiver and adapted to interface with said stock; a trigger mechanism provided in said buttstock interface block and arranged to cooperate with a cocking piece 31 carried by a striker provided in said breech bolt.

A trigger unit for a firearm, including a trigger bar that lies below the trigger axis. A trigger lever has a rear which accommodates at least one disconnector. A sear, rotatable about a sear axis can be biased by means of a sear spring. The hammer axis, the trigger axis and the sear axis are arranged parallel to one another and parallel to a transverse direction. The trigger lever has a recess and the sear is at least partially arranged within. The sear axis and the trigger axis coincide. The sear limits rotation of a disconnector joint formed on the underside of the disconnector; the bearing encloses the disconnector joint at least partially.

A chassis locking system includes a bolt having a cross pin and a chassis. The chassis includes a helically inclined surface that contacts the cross pin of the bolt as the bolt is turned, tightening the chassis to a rifle stock.

A chassis locking system includes a bolt having a cross pin and a chassis. The chassis includes a helically inclined surface that contacts the cross pin of the bolt as the bolt is turned, tightening the chassis to a rifle stock.

A pocket pistol having at least one barrel in alignment with at least one associated chamber for receiving a firearm cartridge; a barrel release trigger; a double-action firing trigger; and a frame carrying the at least one barrel, the barrel release trigger, and the firing trigger, and defining a cavity within the frame carrying a hammer set and a firing pin.

The present disclosure relates to a modular firearm frame adapter that aid in making compatible a slide associated with a first firearm and a frame associated with a second firearm. The compatibility is such that the slide associated with a first firearm and a magazine associated with a second firearm being able to function properly as a single integrated firearm. This system includes an adapter, and one or more adapter elements that aids allowing the modular firearm to function properly.