CMMG MK47 Mutant Post 1,000 Round Torture Test Inspection & Cleaning (HD)

Published on January 26, 2015
Duration: 9:33

This video details the post-torture test inspection and cleaning of a CMMG MK47 Mutant rifle. The primary cause of malfunctions was identified as a loose gas block due to extreme heat causing Loctite failure, leading to gas port misalignment. The cleaning process highlights the effectiveness of Fire Clean in removing fouling and preventing corrosion, even after extensive use and high temperatures. The video also assesses the durability of the rifle's components, including the nitride treatment and the 9310 steel extractor.

Quick Summary

The CMMG MK47 Mutant experienced malfunctions due to a loose gas block caused by extreme heat failing the Loctite, misaligning the gas port. Fire Clean proved effective in cleaning and lubricating components, while the nitride treatment showed good durability, maintaining sharp rifling after extensive firing.

Chapters

  1. 00:12Introduction & Test Overview
  2. 00:31Fire Clean Performance & Nitride Treatment
  3. 01:03Malfunction Cause: Loose Gas Block
  4. 01:35Gas Port Misalignment Analysis
  5. 02:37Cleaning Process Begins
  6. 03:08Barrel Cleaning & Nitride Durability
  7. 03:30Bolt Carrier Group Inspection
  8. 04:20Gas Tube & Key Check
  9. 04:32Firing Pin & Charging Handle Cleaning
  10. 04:58Upper Receiver Cleaning & Lubrication
  11. 05:45Lower Receiver & Trigger Inspection
  12. 06:02Buffer & Steel Pin Durability
  13. 06:24Extractor Condition
  14. 06:44Post-Cleaning Results & Fire Clean Efficacy
  15. 06:54Gas Block Re-Securing & Reassembly
  16. 07:34Lessons Learned: Fire Clean & Gas Block Weakness
  17. 08:12Concluding Thoughts & Future Testing

Frequently Asked Questions

What caused malfunctions in the CMMG MK47 Mutant during the torture test?

The primary cause of malfunctions was a loose gas block. Extreme heat caused the Loctite to fail, leading to misalignment of the gas port with the barrel, preventing proper gas function and resulting in stoppages.

How did the Fire Clean product perform during the CMMG MK47 Mutant torture test?

Fire Clean performed effectively, facilitating easy removal of carbon fouling from various components like the barrel, bolt, and firing pin. It also helped maintain lubrication and prevent corrosion, even after extensive firing and high heat exposure.

Is the nitride treatment on the CMMG MK47 Mutant durable?

Yes, the nitride treatment appears durable. Despite high temperatures and approximately 1,800 rounds fired, the barrel rifling remained sharp and showed no significant erosion, indicating good surface hardening and corrosion resistance.

What is a potential improvement for securing the gas block on rifles subjected to extreme heat?

For rifles subjected to extreme heat or prolonged firing, pinning the gas block to the barrel is recommended over relying solely on Loctite. This provides a more robust attachment that is less susceptible to heat-induced failure.

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