Armaspec Gen 3 Black AR-9 Sound Mitigation Buffer

The Armaspec Gen 3 Sound Mitigation Buffer (SMB) is a single-stage captured replacement for the buffer and spring in 9mm AR setups. The spring is captured on a guide so it never rubs against the inside of the buffer tube. That's where the familiar twang of a standard buffer comes from.

Removing that contact makes cycling smoother and quieter. It swaps in place of your existing buffer and spring with no gunsmithing. The complete system includes the buffer, spring and a polymer base guide rod. The black finish identifies this version within the line and makes it easy to distinguish from the other color options.

The SMB is Armaspec's single-stage system, while the Stealth Recoil Spring is multi-stage. Match the version to your rifle's configuration. Compare the listed compatibility with the firearm in hand, since similar-looking components can differ by platform or generation. Browse more gun parts and accessories.

• Single-stage captured buffer and spring
• Spring doesn't contact the tube
• Drop-in, no gunsmithing
• For 9mm AR setups