BUSH FOR FIRE BLANK FROM FIRE-ARMS Russian patent published in 1998 - IPC

FIELD: military equipment, in particular, appliances providing for fire blank from fire-arms. SUBSTANCE: bush body has an annular shoulder with a central hole tightly closing the bore. Besides, the body has additional holes for releasing the infiltrated gases, and the central hole is so made that bullet could completely enter it. The shoulder may be made in the form of an additional bush rigidly fastened in the body. EFFECT: reduced weight, enhanced reliability and safety of fire. 4 cl, 3 dwg