Patent ID: 6450079
Filing Date: 2002-09-17
Classification: F41A

Abstract:
A muzzle brake in combination with a weapon barrel, the muzzle brake comprising:a generally cylindrical portion having in its axially rearward inner cylindrical surface internal coupling threading for engaging external coupling threading on the weapon barrel, said portion having a radially extending bearing surface for abutting a forward end face of a muzzle end of the weapon barrel and an internal cylindrical bearing surface for fitting snugly over an external cylindrical bearing surface of said weapon barrel near the muzzle end thereof, said internal cylindrical bearing surface being located axially between the internal threading and the radially extending bearing surface of the cylindrical portion; and at least one locking stop for preventing rotation of the cylindrical portion with respect to the weapon barrel when the cylindrical portion is coaxially fitted over the muzzle end of the weapon barrel, said at least one locking stop including at least one screw-threaded tightening bolt arranged to extend through the circumferential thickness of the cylindrical portion and seat into a recess in the outer surface of the weapon barrel, the longitudinal axis of the tightening bolt lying in a plane substantially perpendicular to the longitudinal axis of the brake and barrel and offset from a radial axis of said brake and barrel, said at least one screw-threaded tightening bolt arranged to abut a substantially flat surface portion of said recess in the barrel.