Patent ID: 8695474

Claim:
A muzzle device comprising: a cylindrical body defining an expansion chamber and including a securing mechanism arranged at a proximal end of the cylindrical body and a distal end wall arranged at a distal end of the cylindrical body, the distal end wall having an inner face forming an end wall of the expansion chamber and a concave-shaped axial outer face; an opening for a projectile being arranged in the distal end wall; four distal tuning vents being arranged in the distal end wall about the opening and passing from the expansion chamber through the inner face of the distal end wall and through the axial outer face of the end wall; and a plurality of radial exhaust vents being arranged through a cylindrical wall of the cylindrical body in longitudinally extending rows on the cylindrical body, each longitudinally extending row including at least two radial exhaust vents, each radial exhaust vent elongated parallel to its row; wherein the radial tuning vents are arranged symmetrically around a center position of an upper sector of the cylindrical body, leaving a lower sector of the cylindrical body unvented; and wherein the four distal tuning vents are arranged in the axial outer face in a square pattern with about a 90 degree separation between distal tuning vents, the square pattern oriented with an uppermost two of the four distal tuning vents arranged symmetrically around the center position of the upper sector of the cylindrical body, no vents other than the four distal tuning vents being arranged in the distal end wall: whereby when attached to a muzzle end of a firearm barrel with the center position of the upper sector of the cylindrical body oriented at the twelve o'clock position of the barrel, the muzzle device mitigates muzzle rise and recoil of the firearm during firing of the firearm.