Armaspec SMB Buffer Kit, Carbine Weight

The Armaspec SMB Buffer Kit, Carbine Weight, Gen 3 (brand part no. ARM268-C) is a complete drop-in buffer upgrade built around Armaspec’s Sound Mitigation Buffer (SMB) system. Armaspec designed the SMB to replace the OEM mil-spec buffer spring and weight as a matched set, aimed at quieting and smoothing the cycling of an AR-15 carbine build. The kit is sized to carbine weight specifications, giving it the right mass to cycle a standard carbine-length gas system reliably. It comes with everything needed to complete the buffer system on a rifle build, so there is no need to source a separate spring or weight to match it.

Key Specifications

• Built around Armaspec’s Sound Mitigation Buffer (SMB) design, aimed at quieter, smoother cycling than an OEM buffer.
• Sized to carbine buffer weight specifications for correct function in a standard carbine-length gas system.
• Sold as a complete buffer tube assembly kit, including the matched spring needed alongside the SMB weight.

Frequently Asked Questions

What does the SMB in this kit’s name stand for? Sound Mitigation Buffer, Armaspec’s upgraded buffer weight and spring system designed to smooth and quiet an AR-15’s cycling.

What gas system length is this kit built for? It is sized to carbine buffer weight specifications for a standard carbine-length gas system.

Buy the Armaspec SMB Buffer Kit, Carbine Weight

Smooth out a carbine-length AR-15’s cycling with a matched buffer and spring built specifically for the job. Browse Schaefer Defense’s AR buffer system parts and order from our Lubbock, Texas gun shop for fast shipping.