In Episode 2 of my AR-15 Build Series, I walk through the complete assembly of an AR-15 upper receiver using BCM components. This step-by-step tutorial covers forward assist installation, dust cover installation, thermal fitting the barrel to the upper receiver, barrel nut installation, gas block and gas tube assembly, handguard installation, and final function checks. Whether you’re building your first AR-15 or simply want to better understand how the upper receiver assembly works, this video provides a beginner-friendly overview of the process and highlights techniques used to ensure proper fit and alignment.
(00:00:00) Beginning
(00:03:45) BCM Thermal Fitting Barrel
(00:12:20) End of Thermal Fit
(00:13:50) Forward Assist (First if Mil Spec Barrel)
(00:20:49) Dust Cover
(00:30:40) Barrel Nut
(00:36:14) Gas Block and Gas Tube
(00:50:37) Handguard
(01:02:03) Muzzle Device/Crush Washer
This video is part of my complete AR-15 Build Series, which also includes lower receiver assembly and other AR-15 educational content.
Second upload attempt edited out attaching the A2 birdcage at the end.
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