The Armaspec SMB Kit comes with everything needed to complete your rifle build. This Kit comes with Armaspecs SMB ( Sound Mitigation Buffer), a superior upgrade buffer in place of the OEM mil-spec buffer springs and weights.

Features :

• SMB-C Buffer, 3.3oz
• Includes SMB Buffer, Buffer Tube, Endplate and Castle Nut
• Fits AR-15 Pattern Firearms