Patent ID: 7290475

Claim:
For use with a firearm having a barrel with a bore, an apparatus comprising: a muzzle flash suppressor to mount on the barrel, the muzzle flash suppressor including: a muzzle; a longitudinal bore including internal threading; an inner cone in communication with the longitudinal bore; and a lateral opening located in a side of the muzzle flash suppressor between the inner cone and the muzzle of the muzzle flash suppressor; and a blank cartridge device including: a tube sized to penetrate the longitudinal bore of the muzzle flash suppressor, the tube having external threading to threadingly engage the internal threading in the longitudinal bore of the muzzle flash suppressor, the tube also including an outer cone to form a seal with the inner cone of the muzzle flash suppressor, the tube defining a core bore in communication with the bore of the barrel, the core bore being blocked by a constriction, the constriction defining an injector bore to provide communication between the core bore and a forward portion of the core bore, the core bore being in communication with at least one radial hole; a cover to radially circumvent the lateral openings of the muzzle flash suppressor; and a stop block to receive the tube, the stop block including a blind hole in communication with the core bore when the stop block receives the tube and the blank cartridge device is mounted on the muzzle flash suppressor.