Patent ID: 8065950
Filing Date: 2011-11-29
Classification: F41A,F41C

Abstract:
1. An automatic pistol comprising an immovable barrel, a breech with a firing pin and a cartridge extractor, a slidable spring-loaded sleeve device for removal of gas including a gas piston, a gas cylinder fixed with the barrel and receiving powder gases from firing of the pistol, the sleeve device being slidable from a forward position within the gas cylinder such that powder gases entering the gas cylinder project the sleeve device rearwardly against the spring loading, a firing mechanism and a magazine for cartridges, the barrel being fitted with an end piece at a lower part of a rear end of the barrel, the breech being movable rearward and forward, the breech having a configuration which causes the front end of the breech to move downwardly when in a forward position and to tip upwardly when moved to the rear position, the breech further including locking lugs positioned to engage into locking grooves or recesses formed in the end piece of the barrel to hold the breech locked in the forward position when the breech is restrained from tipping the forward end of the breech upwardly, and the spring-loaded sleeve device, in the course of rearward movement after firing of the pistol, being configured to remove a restraint on the breech and to cause the breech to move rearward, causing the front end of the breech to tip upwardly, and in forward movement of the spring-loaded sleeve device, being configured to carry the breech forward and move the front end of the breech downwardly to again restrain the breech in the forward position.