This guide, presented by Larry Potterfield of MidwayUSA, details the assembly of an AR-15 upper receiver. It emphasizes using quality parts and specific tools like the Model 1 holding fixture and Wheeler FAT Wrench for precise torque application. Key steps include securing the receiver, installing the rear sight for A2 models, and correctly torquing bolt carrier key screws, highlighting the approximately 65 parts involved in the assembly.
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