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.

Foxtrot Mike’s FM-9 Heavy Pistol Buffer is the secret ingredient to make your AR-15 pistol reliable and smooth-cycling.

  • Compatible with all blow-back Pistol Caliber upper receivers
  • Long duration, deep penetration Salt bath Nitride Melonite/QPQ finish gives lubricity and wear-resistance
  • Heavy 6.4 oz. (pistol) weight
  • Extended Length, improves cycling
  • No need for a spacer
  • Made from Premium 4340 Steel
  • Made in the U.S.A.
  • Manufactured with ISO:9001 and AS:9100 quality certifications