This guide details the assembly and configuration of BCM MCMR MK2 ELW AR-15 uppers, as demonstrated by Lucas Botkin. It covers unboxing, preparation, and the installation of various high-end optics and accessories for different tactical applications. The process emphasizes consistency for testing and performance evaluation.
This entry details the BCM MK2 Upper Receiver, as presented by Larry Vickers and Paul Buffoni. It highlights the redesign's focus on increased structural integrity around the ejection port, improved gas management for suppressed use, and enhanced performance benefits like better accuracy and bolt life. The MK2 utilizes 7075-T6 aluminum for a robust yet comparable weight to standard USGI uppers.
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