Shop › ARMASPEC SRS BUFFER KIT H3 GEN 4 ARMASPEC SRS BUFFER KIT H3 GEN 4 $108.89 Armaspec SRS Buffer Kit Gen 4, Stealth Recoil Spring-H3, Fits AR-15, Black ARM263-H3 Quantity: Add To Cart Added! Armaspec SRS Buffer Kit Gen 4, Stealth Recoil Spring-H3, Fits AR-15, Black ARM263-H3