RRR Best muzzle brake. Made from 4140 in White City Oregon, USA. Muzzle brakes are used to increase muzzle control while also adding a custom look to any firearm with the correct muzzle thread. Muzzle brakes can contain any combination of ports and holes which help disperse gases up, down, left or right. With even dispersion of gases, felt recoil is reduced and a higher level of muzzle control is acquired. Caliber reaming is done to order, may increase time to ship depending on workload.