This guide details the installation of the BCM Buffer System on an AR-15 platform. It covers the proper threading of the buffer tube, installation of the buffer retainer and spring, securing the end plate, and final insertion of the buffer and spring. The process emphasizes correct alignment and tension to ensure reliable function.
This video provides expert guidance on selecting and tuning the buffer and spring combination for an AR-9 PCC. It explains the functions of these components in absorbing bolt force and chambering rounds, emphasizing how weight impacts recoil and reliability. The guide offers a formula for combined bolt and buffer weight (22-24 oz minimum) and recommends standard carbine springs, while also detailing how to diagnose issues through range testing and ejection patterns.
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