#html-body [data-pb-style=B9S05CB]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll;border-style:none;border-width:1px;border-radius:0;margin:0 0 10px;padding:10px}#html-body [data-pb-style=T703EMG]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}The Gen3 Sound Mitigation Buffer(TM) SMB(TM) is a single-stage drop-in replacement for your standard buffer and spring. The SMB(TM) is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth, quiet operation. Single-stage drop-in replacement for your AR-10 buffer and spring Reduce felt recoil Keep the buffer spring from rubbing against the inner wall of the buffer tube, providing smooth and quiet operation. Adjustable spring weight (*Main spring can be trimmed at .25 lbs per coil to reduce tension up to a max of 12 coils) Made in the U.S.A. *Patent Pending