FM Products PCC 9mm Heavy Buffer 6.5 oz Black. 5 oz. as a weight for your spring. When you equip this buffer the force that operates the buffer causes the slide to open and close. With the right firearm the right kind of recoil can make or break your shooting experience and the FM Products PCC 9mm Adjustable Buffer melds together the aesthetics and the function of your firearm. This recoil buffer also reduces the rate at which the bolt closes ensuring reliable feeding of your pistol chambered in 9mm. Add this extra weight to your firearm for enhanced recoil control and a smoother shooting experience. The salt bath Nitride Melonite QPQ finish is incredibly lubricated and resistant to wear ensuring you'll use the FM Products PCC 9mm Weighted Buffer for a long time to come. Specifications for FM Products PCC 9mm Heavy Buffer 6.5 oz: Manufacturer: FM Products Color: Black Gun Make: AR Platform Gun Model: AR-15 Length: 3.7 in Features of FM Products PCC 9mm Heavy Buffer 6.5 oz Compatible with all blow-back 9mm upper receivers; Salt bath Nitride Melonite/QPQ finish gives lubricity and wear-resistance; Heavy 6.4 oz. (pistol) weight Package Contents: FM Products PCC 9mm Heavy Buffer 6.5 oz What firearm models does the manufacturer say FM Products PCC 9mm Heavy Buffer 6.5 oz is compatible with? The manufacturer suggests that FM Products PCC 9mm Heavy Buffer 6.5 oz is compatible with AR-15FM Products FM9-HB: PCC 9mm Heavy Buffer 6.5 oz Black