A self-locking bolt assembly is provided having a short stroke allowing the assembly to be contained within the receiver. The assembly has a base plate, a recoil rod with a spring, a bolt body, a bolt and a locking mechanism. The bolt is internally (i.e. lockable onto itself) lockable when the bolt is in battery. The locking mechanism, for example, can be a roller bearing, a lever lock, a cam rotary lock or a roller. The locking mechanism engages to recoil rod and prevents rearward motion of the bolt. Blowback and reciprocation of the bolt are temporarily delayed after a shot is fired until after the bolt is unlocked. Rearward movement of the bolt body due to inertia causes the locking mechanism to be disengaged to unlock the bolt and to allow for reciprocation of the bolt.

A self-locking bolt assembly is provided having a short stroke allowing the assembly to be contained within the receiver. The assembly has a base plate, a recoil rod with a spring, a bolt body, a bolt and a locking mechanism. The bolt is internally (i.e. lockable onto itself) lockable when the bolt is in battery. The locking mechanism, for example, can be a roller bearing, a lever lock, a cam rotary lock or a roller. The locking mechanism engages to recoil rod and prevents rearward motion of the bolt. Blowback and reciprocation of the bolt are temporarily delayed after a shot is fired until after the bolt is unlocked. Rearward movement of the bolt body due to inertia causes the locking mechanism to be disengaged to unlock the bolt and to allow for reciprocation of the bolt.

A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is configured to be movably received through the fore end of a receiver and to move axially relative to the upper receiver when the rifle is fired. The barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension and counteracts recoil forces acting on the barrel extension when the rifle is fired. An op-rod spring is coupled to an op rod extending from a gas piston assembly on the barrel. The op-rod spring counteracts recoil forces acting the bolt actuator when the rifle is fired.

Disclosed is a firearm configuration for a handgun. The firearm configuration is designed to reduce the recoil forces encountered by a user upon firing the weapon. It further includes a recoil plate that absorbs forces generated by the slide during firing. Recoil forces are reduced by lowering the firearm's center of mass and by aligning a recoiling mass with the user's arm and trigger finger. The firearm configuration further includes a locking block which prevents rotational and lateral movement of the barrel upon firing.

A pressure controlled inertia system for automatic fire weapons is provided. The system enabling a lock, especially in automatic rifles, to be opened by using a kinetic energy of a mechanism and a sliding handle block, wherein the kinetic energy is lost by hitting a case, after an empty cartridge is fired.

A pressure controlled inertia system for automatic fire weapons is provided. The system enabling a lock, especially in automatic rifles, to be opened by using a kinetic energy of a mechanism and a sliding handle block, wherein the kinetic energy is lost by hitting a case, after an empty cartridge is fired.

A system is disclosed for extending a recoil impulse of a gun. The system elongates the recoil impulse to spread the recoil energy over time and reduce felt (i.e., peak) recoil force. Although the system adds weight to a gun, the system reduces felt recoil beyond what is possible by simply adding weight to a gun by using an inertial weight on a spring to absorb and release energy. To prevent shaking, the inertial weight system is tuned to a gun so that the inertial weight hits a pair of stops at certain points in the gun's discharge action cycle.

A weapon includes a stationary barrel mounted fixedly in a frame, and a slide movably mounted to the frame for forward and backward displacement relative to the frame. A locking mechanism for the slide includes a retractable spring acting on the slide in a direction towards a forward-most position of the slide, and a pair of levers arranged under the barrel between the slide and the frame. The pair of have opposite end axes of rotation and are mutually rotatably connected by a common axis. The common axis lies under a line that extends between the end axes of rotation of the pair of levers.

A weapon includes a stationary barrel mounted fixedly in a frame, and a slide movably mounted to the frame for forward and backward displacement relative to the frame. A locking mechanism for the slide includes a retractable spring acting on the slide in a direction towards a forward-most position of the slide, and a pair of levers arranged under the barrel between the slide and the frame. The pair of have opposite end axes of rotation and are mutually rotatably connected by a common axis. The common axis lies under a line that extends between the end axes of rotation of the pair of levers.

Disclosed is a firearm configuration for a handgun. The firearm configuration is designed to reduce the recoil forces encountered by a user upon firing the weapon. It further includes a recoil plate that absorbs forces generated by the slide during firing. Recoil forces are reduced by lowering the firearm's center of mass and by aligning a recoiling mass with the user's arm and trigger finger. The firearm configuration further includes a locking block which prevents rotational and lateral movement of the barrel upon firing.