Surefire SOCOM Muzzle Brake / Suppressor Adapter M4, M16 and variants with 1/2-28 muzzle threads . Reduces recoil. Available to order on-line. Ships in 5-14 days $169.00
Surefire ProComp Muzzle Brake M4, M16 and variants with 1/2-28 muzzle threads. Reduces recoil. Out of stock. Check back later... $99.00