SELF-LOADING GUN Russian patent published in 2009 - IPC F41C3/00 

FIELD: weapons.

SUBSTANCE: invention relates to small arms. Proposed self-loading gun comprises a barrel, frame, breech-block, magazine, striker, spring-loaded barrel latch, return spring, sear, trigger, fire control lever-safety lock and cocking lever. The barrel has locking ledges. The breech-block inner surface has two symmetric ledges to contact aforesaid barrel ledges when breech-block recoils and passes the distance sufficient for cartridge case extraction. Return spring is fitted around the barrel lock, while barrel lock spring seats in the barrel lock inner space. Sear and fire control lever-safety lock are arranged behind the breech-block, sear and fire control lever-safety lock axes being aligned. Trigger is furnished with a ledge to contact striker and prevent the contact between the latter and cartridge primer in case the trigger makes incomplete stroke. Striker and sear are arranged to allow cock striker when barrel and breech block recoil together.

EFFECT: smaller weight, reduced blow-back higher reliability.

1 dwg