ARMASPEC STLTH RECOIL SPRING AR10 G4

Armaspec Stealth, Spring, Black ARM253-AR10 The Stealth Recoil Spring SRS GEN4 is a self-contained multi-stage drop-in replacement for your standard buffer and spring. 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.