This guide details the assembly of an 80% Arms GST-9 pistol, a DIY firearm project inspired by gun control discussions. It covers unboxing, machining the 80% lower receiver using a jig and power tools, component assembly, function checks, and concludes with live-fire testing at a range. The process emphasizes self-reliance in firearm ownership, presented in a satirical musical parody format by firearm personality Brandon Herrera.
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