Ultimate Piston AR-15 Meltdown!

Published on March 11, 2016
Duration: 18:59

This guide details the procedure for conducting a piston AR-15 meltdown test, as demonstrated by Iraqveteran8888. It covers rifle preparation, safety protocols, continuous firing, temperature monitoring using thermal imaging and infrared thermometers, and post-test component analysis. The test highlights the durability of the LMT piston system under extreme conditions, noting its failure point at 833 rounds due to internal component stress rather than catastrophic barrel failure.

Quick Summary

Iraqveteran8888's extreme meltdown test revealed the LMT CQB MRP 16" Piston AR-15 failed after 833 rounds due to internal component damage like a mushroomed bolt carrier and seized gas piston, not barrel failure. Thermal imaging monitored heat, highlighting the piston system's robust barrel integrity compared to DI systems under extreme stress.

Chapters

  1. 00:00Introduction and DI Comparison
  2. 01:11LMT Piston Upper Specifications
  3. 02:03Test Setup and Safety
  4. 03:04Firing Sequence and Heat Monitoring
  5. 08:26Failure and Initial Assessment
  6. 11:09Post-Meltdown Component Analysis
  7. 13:18Final Results and Conclusions

Frequently Asked Questions

What was the failure point of the LMT CQB MRP 16" Piston AR-15 in the meltdown test?

The LMT CQB MRP 16" Piston Upper failed after 833 rounds during a full-auto meltdown test. The failure was characterized by internal component damage, including a mushroomed bolt carrier and a seized gas piston rod, rather than a catastrophic barrel failure.

How does the LMT piston AR-15's performance compare to a direct impingement (DI) AR-15 in extreme conditions?

In extreme meltdown tests, the LMT piston system demonstrated better barrel integrity, avoiding the drooping failure seen in a DI system. However, both systems eventually failed, with the piston system succumbing to internal component wear and seizing after a similar round count.

What tools were used to monitor the LMT piston AR-15 during the meltdown test?

During the meltdown test, thermal imaging equipment, specifically an Armasight Zeus, was used to monitor the rifle's heat signature. An infrared thermometer was also employed to measure the barrel temperature in real-time.

What specific damage occurred to the LMT piston AR-15 after the meltdown test?

After 833 rounds, the LMT piston AR-15 sustained damage including a mushroomed bolt carrier where the piston struck it, a galled charging handle, and a seized gas piston rod. The barrel itself remained straight.

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