SELF-LOADING NOISEFREE PISTOL Russian patent published in 2009 - IPC F41C3/00 F41A21/30 

FIELD: weapons.

SUBSTANCE: invention relates to small arms, particularly, to self-loading noiseless pistols. Proposed pistol comprises barrel with powder gas ejection orifices made in the barrel rifled part, integrated silencer, open bolt, frame, sear, trigger, fire-control lever-bolt stop, magazine, lever-type return mechanism with return spring and lockwork. Silencer chambers are arranged below the barrel axis. Integrated silencer housing and frame represent a single block made from polymer material. Open bolt is furnished with gas brake representing a gas-discharge orifice made at the barrel rear and a gas chamber formed by bolt lateral and front walls. Note that gas brake orifice allows discharging gases from the barrel into integrated silencer chamber. Lever-type return mechanism is furnished with increasing arm to transfer recoil energy from the bolt to return spring fitted in the pistol handle. When bolt slides back till bullet case extraction, aforesaid arm transfer ration approximates to 1:4, while after extraction it makes, at least, 1:2.

EFFECT: simpler design, higher reliability.

1 dwg