This video provides a comprehensive guide on how to choose the best Bolt Carrier Group (BCG) for an AR-15 build. It delves into critical features such as different steel types (Carpenter 158, 9310, S7 Tool Steel), coatings (Parkerized, Nickel Boron, DLC), and the importance of gas key staking. The content covers basic Mil-Spec BCGs, advanced options from manufacturers like Sharps Rifle Co and Lantac, and compares M16 vs. AR-15 style carriers. It also touches upon who makes BCGs and offers recommendations for cleaning tools.
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