Upgrade Kit for M-16/AR-15

Providing more than four times the extraction force of the standard parts, the Buffer Technologies upgrade kit offers M-16/AR-15 users a way to ensure a more positive functioning rifle. This upgrade provides a particularly important improvement for the M-4/CAR-15 series of short-barreled rifles, with the higher port pressures and more violent extraction common to these weapons. The upgrade consists of an improved spring, plunger and O-ring, which can be easily installed in minutes. It assures reliable extraction even when the chamber becomes heavily fouled after extensive firing, or when used with ammunition that is less than optimally matched to the rifle's port-pressure requirements.

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