Excellent quality muzzle brake - SureFire SFMB Socom Muzzle Brake

As expected from a great company that makes great quality products, this muzzle break is top notch. It's a heavy piece without any manufacturing imperfections. Surefire makes military spec items for the U.S. armed forces and i feel by holding this muzzle brake, i got that mil spec quality. It comes with different size shims and a chart for correct timing on the threads during installation. It's also the QD mount for some of Surefires QD suppressors.