The advanced SureFire SFMB-338-3/4-24 muzzle brake, which fits 8.60 mm (.338 caliber) rifles with 3/4-24 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-338-3/4-24 also serves as a rock-solid mounting adapter for .338 caliber SureFire SOCOM Series Fast-Attach suppressors.