A shoulder fired semi-automatic rifle in the bullpup configuration including a housing, a barrel projecting forward from the housing, a bolt mechanism within the housing including but not limited to a firing pin having a system to prevent movement via inertia, a bolt mechanism that utilizes a slidable bolt locking plate and a magazine that works with the bolt mechanism. The trigger and pistol grip are mounted forward of the magazine and ahead of the bolt, the trigger is connected to the hammer sear via a transfer bar linkage.
An automatic weapon has a housing 1 with a movable spring-mounted barrel assembly 6 having a barrel 7 and a receiver 8. The receiver 8 has a spring-mounted bolt support 24 with a bolt 27, a buffer mechanism 32 and a firing pin mechanism 33 having a movable firing hammer 36 which interacts with the bolt support 24. The housing 1 has a trigger mechanism 50 with a firing trigger 52, a sear 43 with a spring-mounted pawl 18 interacting with the trigger 52 and the firing hammer 36, and a movable tripper 53 with cams (56, 67) interacting with the spring-mounted pawl 48 and the trigger 52. A device angularly displaces the barrel assembly 6 relative to the housing 1 and a muzzle attachment device 13 has expanding chambers with intercrossing cavities.
A low recoil and low bore heat gun system provides a delayed pressure release mechanism for fired propellant charges in the rear gun barrel section. The delayed pressure release of the exhaust gases causes a sonic rarefaction wave along the length of the barrel bore to arrive at the exist end of the gun barrel at a predetermined time, generally coincident with the fired projectile.
Firearms having a locked breech are disclosed. An example firearm includes a barrel; a bolt head; a firing pin having a bulge; a bolt head carrier having a forward position and a rearward position; a central force receiving component receiving a rear end of the barrel and defining a plurality of recesses; and a locking bolt penetrating the bolt head. The locking bolt is movable between: (1) a locked position wherein the locking bolt engages in the recesses of the central force receiving component to thereby lock the bolt head to the central force receiving component and (2) an unlocked position wherein the bolt head is free to move with the bolt head carrier. The locking bolt is pressed by the bolt head carrier into the locked position when the bolt head carrier is in the distal position. The locking bolt defines an oblong hole which is penetrated by the firing pin. The oblong hole has a beveled edge which engages the bulge of the firing pin to push the firing pin rearward when the locking bolt moves from the locked position to the unlocked position. The barrel defines a gas intake opening. A gas cylinder is located in the central force receiving component. The gas cylinder is in communication with the gas intake opening. The bolt head carrier forms at least a portion of a gas piston which cooperates with the gas cylinder.
Short repeater rifle with a barrel, which has on one of its ends a cartridge receiver; a locking system; a trigger assembly with a trigger and a trigger guard; a firing mechanism; a magazine; and a targeting device, characterized in that the center of gravity of the short repeater rifle lies in front of the trigger guard in the shooting direction.
