This video provides an in-depth autopsy and physical inspection of a Primary Weapons Systems (PWS) bolt carrier group, highlighting significant manufacturing defects. The inspection reveals issues with gas key alignment, staking quality, and dimensional tolerances, leading to the conclusion that the carrier is 'dead on arrival'. The video also includes a physical inspection of an LMT Enhanced Bolt, which passes all tests.
This guide details the assembly of an M16A1 upper receiver using Brownells retro components. It covers the installation of the forward assist, rear sight assembly, ejection port dust cover, barrel, and gas tube, emphasizing proper torque specifications for the barrel nut and alignment procedures for critical components. The process concludes with flash suppressor installation and a function check.
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