The ST1 employs an angled baffle design that applies downward pressure while not venting gas into the line of sight or increasing ground disturbance. This results in a drastic reduction of felt recoil as well as minimal muzzle rise. - 5/8X24 THREAD PITCH - BEST-IN-CLASS RECOIL AND MUZZLE RISE MITIGATION - 17-4 GRADE STAINLESS STEEL WITH NITRIDE FINISH - INCLUDES WRENCH AND BUBBLE LEVEL - Length 2.500 - Diameter 1.00 - Locking Nut Diameter 1.10