This video details the precise installation of an AR-15 barrel, emphasizing techniques for handling tight fits and ensuring proper torque. Key steps include using specialized tools like the Geissele Reaction Rod, applying AeroShell 33MS grease for lubrication, and employing a heat gun for thermal expansion of the upper receiver. The process concludes with torquing the barrel nut to 50 ft-lbs using a Husky torque wrench.
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