reduce felt recoil, improve reliability, reduce bolt carrier speed, reduce wear on parts, reduce shock and vibration to optics, and suppress bolt bounce with this simple drop-in replacement. Designed for AR-15 rifles with a collapsible stock. This buffer has a piston that is hydraulically dampened to absorb the shock of impact from the bolt carrier's rearward motion and to prevent bolt bounce as a new cartridge is chambered. You will feel less recoil and smoother operation with this buffer and you will see less movement of your sights during recoil for faster shot to shot recovery time.

advertised right here, problem solved for $110!