ARMASPEC SOUND MITIGATION BUFFER H SS/BLK

The Sound Mitigation Buffer(TM) SMB (TM) is a single-stage drop-in replacement for your standard buffer and spring. The Sound Mitigation Buffer (TM) is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth,quiet operation. Pat. Pending 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. Weight 5.9 oz.