Faxon 9mm AR Meltdown!

Published on October 12, 2018
Duration: 51:53

This video details an extreme durability test on a Faxon 9mm AR upper receiver, pushing it through over 5,000 rounds of full-auto fire. Expert Eric, a known firearms subject matter expert, demonstrates the platform's resilience, noting its ability to maintain functionality and accuracy despite significant heat and carbon buildup. The test highlights the robust construction of the Faxon upper, particularly its 4150 steel barrel and Nitride coating.

Quick Summary

The Faxon 9mm AR upper, featuring a 10-inch 4150 steel barrel with Nitride coating, successfully endured over 5,000 rounds of full-auto fire in a meltdown test. It remained functional, though experienced some sluggishness due to carbon buildup, and retained accuracy at 40 yards post-test, demonstrating exceptional durability.

Chapters

  1. 00:00Introduction to Faxon 9mm AR Meltdown
  2. 00:43Technical Specifications of the Upper
  3. 01:05Testing Methodology and Expectations
  4. 02:04The Meltdown Test Sequence
  5. 07:34Post-Test Analysis
  6. 11:10Accuracy Testing Post-Meltdown

Frequently Asked Questions

What is the Faxon 9mm AR upper's performance in extreme conditions?

The Faxon 9mm AR upper, featuring a 10-inch 4150 steel barrel with Nitride coating, endured over 5,000 rounds of full-auto fire in a meltdown test. It remained functional, though experienced some sluggishness due to carbon buildup, and retained accuracy at 40 yards post-test.

How does 9mm heat compare to rifle calibers in an AR platform?

Compared to rifle calibers like 5.56x45mm NATO, 9mm generates less heat. This means that in sustained fire scenarios, component failures like guide rods might occur before the barrel itself fails, as observed in some pistol-caliber carbine tests.

What were the key technical specifications of the Faxon 9mm AR upper tested?

The tested Faxon 9mm AR upper featured a 10-inch barrel made of 4150 steel with a Nitride coating, a 1/2x28 thread pitch, and Faxon's proprietary M-LOK rail system. It was mounted on a New Frontier Armory full-auto lower receiver.

What was the outcome of the post-meltdown accuracy test?

After firing over 5,000 rounds, the Faxon 9mm AR upper was tested for accuracy at 40 yards using CCI 115gr FMJ ammunition. Despite the extreme stress, the firearm consistently hit steel plates, demonstrating that the barrel retained its structural integrity and accuracy.

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