The Shrewd #4 Muzzle Brake is designed to reduce recoil and muzzle rise with a single expansion chamber and 42 total ports.
Installation requires gunsmithing and the exit hole must be opened to .020" larger than the bullet diameter, up to .44 caliber.
Constructed from either 4140 chrome moly steel or 416 stainless steel, it features a satin finish and is compatible with universal rifles with 5/8-24 threads.