Armaspec SRS-BB Gen 4 5.7oz AR-15 Buffer Kit

The Armaspec® SRS-BB Gen 4 5.7oz AR-15 Buffer Kit is an enhanced parts kit designed to keep the buffer spring from rubbing against the inner wall of the buffer tube for smooth, quiet operation and reduced felt-recoil. The kit includes a Mil-Spec 7075-T6 aluminum 6-position buffer tube, steel castle nut, steel end plate, and a 5.7oz. recoil buffer system, offering smooth and consistent operation with any AR-15 build. Compatible with most Mil-Spec receivers.