Turned from 4140 steel with a nitride finish, the 5.56mm ZEROED SVD Brake provides efficient recoil mitigation in a compact size. Designed to have the same exterior dimensions as a mil-spec A2 flash hider, the 5.56 SVD brake allows for direct QD attachment of DEFCAN-556 and DEFCAN-762 suppressors. Looking for a pin & weld muzzle device to bring a 14.5" barrel to 16.1"? The SVD brake is setup and ready and includes everything you need to permanently attach. (Welder and required skills not included)