Shop › ARMASPEC SRS BUFFER KIT H2 GEN 4 ARMASPEC SRS BUFFER KIT H2 GEN 4 $108.89 Armaspec SRS Buffer Kit Gen 4, Stealth Recoil Spring-H2, Fits AR-15, Black ARM263-H2 Quantity: Add To Cart Added! Armaspec SRS Buffer Kit Gen 4, Stealth Recoil Spring-H2, Fits AR-15, Black ARM263-H2