This video features Larry Potterfield, Founder and CEO of MidwayUSA, providing an in-depth guide on how to inspect and prepare an AR-15 lower receiver. As part of the "Gunsmithing the AR-15" series, this instructional content aims to educate viewers on essential pre-assembly steps for this popular firearm platform. It highlights the importance of thorough inspection and proper preparation to ensure the functionality and reliability of the AR-15 build.
This video details the assembly of an AR-15 Bolt Carrier Group (BCG) by Larry Potterfield of MidwayUSA. Key steps include accurately measuring firing pin protrusion using specialized gauges and calipers, ensuring it falls within the .028 to .036 inch range. The process also covers correctly inserting the bolt into the carrier with the extractor oriented, installing the cam pin to allow free movement, and securing the firing pin with its retainer pin.
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