Larry Potterfield of MidwayUSA provides an expert-level, step-by-step guide on building an AR-15 upper receiver. The video details the installation of critical components like the ejection port cover, forward assist, A2 rear sight, and barrel assembly, emphasizing precise torque values and essential safety checks such as headspace verification. This comprehensive tutorial is invaluable for gunsmiths and DIY enthusiasts looking to assemble their own AR-15 upper receiver with professional results.
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