Armaspec Sound Mitigation Buffer ™- SMB ™ Carbine 3.0oz

The Sound Mitigation Buffer™ SMB ™ is a single-stage drop-in replacement for your standard buffer and spring. The Sound Mitigation Buffer ™ is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth,quiet operation. Pat. Pending
SMB-Carbine 3.0 oz

Installation instructions:
1. Insert polymer base with guide rod into the buffer tube.
2. Insert desired spring on the guide rod.
3. Insert the buffer over the spring.
Note: Spring will fully set after approximately 100 shots. Main spring can be trimmed at .25 lbs per coil to reduce tension up to a max of 12 coils.