The advanced SureFire SFMB-338-5/8-24 muzzle brake, which fits 8.60 mm (.338 caliber) rifles with 5/8-24 muzzle threads, greatly reduces both recoil impulse and muzzle rise and features neutral porting that loads bi-pod legs evenly. Its patented Impulse Diffusion design minimizes side blast and rear-directed concussion effects. The SFMB-338-5/8-24 also serves as a rock-solid mounting adapter for .338 caliber SureFire SOCOM Series Fast-Attach suppressors. Precision machined from US mill-certified heat-treated stainless steel bar stock-including high-precision single-point cut threads for optimum thread interface-the SFMB-338-5/8-24 muzzle brake is given a black Ionbond DLC coating to provide maximum protection under harsh environmental conditions and to facilitate cleaning even after extreme use. When used in conjunction with a SOCOM Series suppressor, the patent-pending design of the SFMB-338-5/8-24 provides multiple bearing surfaces to ensure superior suppressor alignme...