There is nothing like owning and purchasing Ruger Factory parts and accessories for your Ruger firearms. This particular part is a muzzle device made specifically for the Ruger American rifle chambered in .450 Bushmaster. The muzzle device will reduce recoil and will clock into position using a jam nut. It is made from alloy steel and features a matte black finish. It is worth noting that the part is made right here in the USA.