SMALL ARMS BLANK FIRE BUSHING Russian patent published in 2002 - IPC

FIELD: military equipment, applicable in small arms blank fire devices. SUBSTANCE: the blank fire bushing has a body and an auxiliary bushing that is movable relative to the body. The auxiliary bushing has a cone entering the cone of the barrel or flash absorber of the weapon, and a seat for the wrench, for example, a groove for screwing of the auxiliary bushing in the body and producing of a preload in the joint of the cones. The body and the auxiliary bushing make up a self-adjusting system relative to the cone of the barrel or flash absorber. EFFECT: enhanced strength of the bushing, its operating reliability, prevented clogging of the ejection ducts by a powder carbon deposit at firing with a blank fire bushing. 5 dwg