The CMMG ZEROED Muzzle Brake features angled ports that provides excellent recoil control and minimizes muzzle rise. This allows for faster return to target for more accurate follow-up shots and creates a more enjoyable shooting experience. Designed for popular calibers like 5.56mm/.223, .224 Valkyrie, and .22 Nosler. Made from 4140 Steel with a Nitride finish, the ZEROED Muzzle Brake has the durability and attention to detail that all CMMG products are known for.