Helps Keep Your Pistol-Caliber AR-15 Cycling Reliably The Foxtrot Mike Products FM-9 Heavy Pistol Buffer is the correct weight to ensure reliable cycling of any blow-back operated AR-15 pistol action. With its extended length, the FM-9 Heavy Pistol Buffer requires no spacer and helps prevent bolt catch breakage. By installing this buffer, you'll enjoy smoother function, less felt recoil, and reduced rate of fire from your AR pistol. The FM-9 is compatible with all 9mm upper receivers Compatible with all blowback 9mm upper receivers Salt bath Nitride Melonite/QPQ finish gives lubricity and wear-resistance Heavy 6.4 oz. (pistol) weight Available with 308 Mfg: Foxtrot Mike Products
