SureFire ProComps take the standalone muzzle brake to the proverbial next level. The Surefire ProComp Muzzle Brake fits AR style weapons. You can count on a muzzle brake that greatly reduces both recoil impulse and muzzle rise so that your weapon tracks straight back to keep you on target for faster shot-to-shot recovery. Surefire's proprietary Impulse Diffusion design minimizes side blast and rear-directed concussion effects for even greater accuracy. Every ProComp features blind pilot holes at the 9 o'clock position to enable fine-tuning of recoil traits for individual shooting styles or ammunition characteristics. All that is required is a basic hand drill and appropriate drill bits.Notes: SureFire ProComp muzzle brakes are stand-alone muzzle devices and do not serve as mounts/adapters for any SureFire Fast-Attach sound suppressorsFeaturesOffset porting greatly reduces recoil impulse and muzzle rise so the weapon tracks straight back to keep you on target for faster shot-to...