Videos tagged with Component Gauging

This in-depth autopsy of a Black Rain Ordnance SPEC15 AR-15, conducted by an expert armorer, reveals critical manufacturing and assembly flaws. Key issues include an undersized buffer spring, a buffer tube striking the receiver, a loose carrier key, an undersized magwell, and a significantly oversized gas port (.089 inches). These problems collectively lead to over-gassing, violent cycling, and component damage, explaining the rifle's failure to function reliably. The analysis emphasizes the importance of proper component tolerances and gas system tuning for AR-15 reliability.