Tough polyurethane cylinder replaces the factory steel bolt stop pin to cushion metal-to-metal impact and reduce receiver wear. Shock-absorbing qualities help reduce felt recoil and receiver stress, while eliminating the annoying “clunk” sound of the bolt cycling. Easy installation instructions included.

Color may vary from the manufacturer.

SPECS: Polyurethane, Approx. 1ј” (3.2cm) long, ј” (6.35mm) diameter.