Shop › DEAD AIR XEMAX BRAKE 11/16X24 45CAL DEAD AIR XEMAX BRAKE 11/16X24 45CAL $90.00 Dead Air Armament Xemax, Muzzle Brake, 45 Caliber, 11/16X4, Nitride Finish, Black DA152 Quantity: Add To Cart Added! Dead Air Armament Xemax, Muzzle Brake, 45 Caliber, 11/16X4, Nitride Finish, Black DA152