Armaspec ARM263-9 SRS-9 Buffer Tube Kit Black AR-15 Gen4

The Armaspec ARM263-9 SRS-9 Buffer Tube Kit includes all parts needed to mount a stock assembly on an AR-15 lower receiver. It features a 7075-T6 aluminum 6-position buffer tube, steel castle nut, end plate and Gen4 SRS-9 multi-stage recoil buffer for 9mm applications. The SRS is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth, quiet operation and the second stage helps reduce the felt recoil significantly.