AUTOMATIC FIREARM Russian patent published in 2013 - IPC F41A19/03 F41A3/78 

FIELD: weapons and ammunition.

SUBSTANCE: automatic firearm comprises receiver with barrel secured therein, breech frame with breechblock and return spring, buffer fear with fire selector, pistol grip and magazine. Buffer gear is arranged inside said pistol grip and comprises two-arm lever fitted on pin in buffer case with one arm located on breech frame travel part and another arm arranged to interact with spring-loaded buffer. Buffer gear buffer selector is composed of rod with ledges while mate recesses of different depth are made on buffer case. Buffer lever arm located on breech frame travel part is composed of two-point fork engaged with breech frame element with disengaged buffer gear and does not impedes its displacement in recoiling against the stop to breech frame back plate. Spring-loaded rammer is fitted on pin at breechblock bottom to turn rammer working part toward cartridge in magazine.

EFFECT: expanded range of rate of fire variation, higher reliability.

2 cl, 6 dwg