Shop › ARMASPEC A5 SPACER FOR SRS/SMB ARMASPEC A5 SPACER FOR SRS/SMB $6.29 Armaspec A5 Spacer, Fixed Stock to Carbine Spacer, Stealth Recoil Spring/Sound Mitigation Buffer, Fits AR-15 A5 Style Stocks, Black ARM154-RFLA5 Quantity: Add To Cart Added! Armaspec A5 Spacer, Fixed Stock to Carbine Spacer, Stealth Recoil Spring/Sound Mitigation Buffer, Fits AR-15 A5 Style Stocks, Black ARM154-RFLA5