Surefire ProComp Muzzle Brake M4, M16 and variants with 1/2-28 muzzle threads. Reduces recoil. Out of stock. Check back later... $99.00
Surefire SOCOM Muzzle Brake / Suppressor Adapter M4, M16 and variants with 1/2-28 muzzle threads . Reduces recoil. Out of stock. Check back later... $169.00