Patent ID: 6889593

Claim:
A blank cartridge device comprising: a frame including first and second longitudinal sides and front and rear sides, wherein the rear side includes a laterally open recess, and wherein the frame is laterally deferrable on a muzzle flash eliminator of an automatic firearm; a threaded bush disposed within the front side; a substantially axially symmetric nozzle body including a male thread on the outer periphery of the nozzle body and adapted to be screwed into the threaded bush and to extend into the muzzle flash eliminator, wherein the nozzle body includes a longitudinal tapped blind hole extending a length within the nozzle body and a spray hole extending from a muzzle at an outer surface of the nozzle body to the longitudinal tapped blind hole, and wherein the longitudinal tapped blind hole includes an elongated portion extending beyond the spray hole and having a volume of at least one bullet discharged from the automatic firearm; and a cover bushing connected with the threaded bush, wherein the cover bushing is located over the nozzle body when the nozzle body is screwed into the threaded bush.