V Seven Port Door Rod AR-15 5.56 Grade 5 Titanium Raw Finish Silver PDR-TI

$21.34

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From OpticsPlanet

V Seven Port Door Rod AR-15 5.56 Grade 5 Titanium Raw Finish Silver PDR-TI. It does this by slightly adjusting the position of the port door. The Port Door Rod is mounted to the upper receiver with the least amount of force possible. When the rod is straight there is very little side pressure applied to the port door. When the rod is canted there is enough spring force to keep the port door rod in place. The port door does this by applying pressure to the "rod" portion of the assembly and causing it to 'lock' into place. The tip of the port door rod is held in place by the ports small rounded teeth.