The Armaspec SMB Buffer Kit, AR-9, Gen 3 is a buffer kit built around Armaspec’s SMB, the Sound Mitigation Buffer (Armaspec part no. ARM268-9). Armaspec makes this version for AR-9 builds, which is the detail that decides whether it fits. It is the Gen 3 design. Because the platform is named in the listing, it is not an AR-15 or AR-10 kit. Check that your build is an AR-9 before you order.

Key Specifications

• The buffer is Armaspec’s Sound Mitigation Buffer (SMB), the design the kit is built around.
• The kit is the Gen 3 version of the SMB, the generation named in the listing.
• It is made for AR-9 builds, so it is matched to that platform and not to AR-15 or AR-10 rifles.

Frequently Asked Questions

Is this the AR-15 or the AR-9 kit? It is the AR-9 kit, made for AR-9 builds.

What does SMB stand for? Sound Mitigation Buffer, the Armaspec buffer design this kit is built around.

Buy the Armaspec SMB Buffer Kit, AR-9, Gen 3

Matching the buffer kit to the platform keeps a build simple, and this one is named for AR-9. It brings the Gen 3 Sound Mitigation Buffer design to that platform. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see more AR buffer system parts.