SureFire Suppressor Adapter/Muzzle Brake, fits the Armalite AR-10, DPMS LR308, and 7.62 mm rifles with 5/8-24 muzzle threads. It greatly reduces both recoil impulse and muzzle rise and features neutral porting that loads bi-pod legs evenly. The patented Impulse Diffusion design minimizes side blast and rear-directed concussion effects. The SFMB-762-5/8-24 also serves as a rock-solid mounting adapter for SureFire SOCOM Series 7.62 mm 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-762-5/8-24 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.