Armaspec Sound Mitigation Buffer H3 Gen3 5.6 oz AR-15

The Armaspec Sound Mitigation Buffer (SMB) Gen3 in the H3 weight class is a single-stage captured drop-in replacement for the standard AR-15 buffer and recoil spring. Weighing in at 5.6 oz, this buffer is engineered to reduce felt recoil and minimize the noise created by the buffer spring rubbing against the inside of the buffer tube during operation.

The captured spring design keeps the buffer components properly aligned during cycling, eliminating the rattle and play that can occur with traditional buffer and spring setups. Because the spring is captured within the buffer body, the Armaspec SMB installs as a single unit - simply remove the factory buffer and spring and drop the SMB in. No modifications to the existing buffer tube or lower receiver are required.

The H3 weight makes this buffer a solid choice for AR-15 builds looking for a quieter, smoother-cycling carbine. Whether you are tuning a suppressed host, a 300 Blackout subsonic setup, or simply looking to upgrade from a standard buffer and spring, the Armaspec Sound Mitigation Buffer delivers a noticeable improvement in operation.