Videos tagged with PSA CHF M4 Upper

This video details a destructive meltdown test on a Palmetto State Armory CHF M4 Upper receiver chambered in 5.56 NATO. Conducted by Iraqveteran8888, the test pushes the upper to its limits via continuous full-auto fire, monitoring heat with thermal imaging. The analysis, performed with high authority and detailed knowledge of metallurgy and AR-15 dynamics, reveals the barrel's robust construction from 'machine gun steel' and identifies the gas tube as the primary failure point at 430 rounds, acting as a safety fuse. The expert assessment highlights the importance of gas tube material selection for extreme use and suggests future testing with upgraded components.