This video provides an in-depth review of the Surefire Optimized Bolt Carrier Group, detailing its design intent to address M4 platform issues like bolt carrier bounce and high cyclic rates. It compares the Surefire BCG to the LMT Enhanced Bolt Carrier Group, discussing historical context and technical modifications such as altered cam tracks and buffer systems. The review highlights the benefits for full-auto fire, suppressed use, and over-gassed systems, while also noting potential concerns regarding bolt catch wear and cold-weather performance.
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