ARMASPEC Stealth Recoil Spring AR-15 Gen 4 Black

ARMASPEC Stealth Recoil Spring AR-15 Gen 4 Black. - Self-contained multi-stage drop-in replacement for your standard buffer and spring. - Designed to keep the buffer spring from rubbing against the inner wall of the buffer tube, providing smooth, quiet operation. - Second stage helps reduce felt recoil significantly.