Designed to deliver improved weapon control and superior flash mitigation, the Surefire® ProComp Muzzle Brake reduces felt recoil by up to 70% for improved weapon control and faster, more reliable follow-up shots under stress. Constructed of heat-treated barstock stainless steel with a corrosion-resistant DLC coating, this muzzle brake features a proprietary Impulse Diffusion design, engineered to minimize side blast and rear-directed concussion effects. The ProComp brake features blind pilot holes at the 9 o’clock position, allowing you to fine-tune the muzzle brake to fit your individual shooting style for added versatility. 5/8 x 24 threads. NOT compatible with suppressors. Made in USA.