Patriot Ordnance Factory The POF Mil-Spec 7075-T6 aircraft aluminum Anti-Tilt Buffer Tube uses carrier cradle extensions to ensure that the bolt carrier is always supported by the buffer tube, even when the bolt is forward. This prevents carrier-tilt and premature wear on the buffer tube. Thusly, the buffer-detent button doubles as a lock that stops the buffer tube from rotating and becoming loose under extreme operation conditions. POF-USAs designing also features three (3) extra drain holes for marine environments.
- AR-15 Six Position Buffer Tube
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