Replacement SBPDW buffer tube for the SB Tactical® SBPDW Brace. OEM tube that comes with SB Tactical’s SBPDW Brace for AR-15. This proprietary buffer tube and integrated castle nut are one-piece and made form 6061 aluminum. Compatible with mil-spec bolt carrier groups and carbine buffers/springs (not included).

Install Tip – Castle nut wrenches are often steel. The SBPDW buffer tube/castle nut assembly is aluminum. Care must be taken during installation and removal to avoid damaging the integrated castle nut.

Full installation instructions available through SB Tactical.