M&P15 SPORT II MELTDOWN!

Published on November 30, 2017
Duration: 15:05

This video details an extreme full-auto endurance test on a Smith & Wesson M&P15 Sport II, pushing it to its limits. Expert analysis from Eric highlights the rifle's performance under stress, identifying gas port erosion as the failure point after 820 rounds. Despite the meltdown, the M&P15 Sport II is deemed exceptionally rugged for standard semi-auto use and a great value.

Quick Summary

The Smith & Wesson M&P15 Sport II endured 820 rounds in a full-auto meltdown test, failing due to gas port erosion. Despite this extreme test, the rifle is considered exceptionally rugged and a great value for standard semi-automatic use, outperforming expectations for an entry-level firearm.

Chapters

  1. 00:00Introduction and Rifle Specs
  2. 02:43Test Setup and Safety
  3. 03:28The Meltdown Test
  4. 08:24Failure and Initial Assessment
  5. 11:15Post-Test Analysis
  6. 13:07Final Thoughts

Frequently Asked Questions

How many rounds did the Smith & Wesson M&P15 Sport II withstand in the full-auto test?

The Smith & Wesson M&P15 Sport II endured approximately 820 rounds during a continuous full-auto meltdown test before experiencing a failure in its gas system.

What was the primary cause of failure for the M&P15 Sport II during the endurance test?

The primary cause of failure was identified as gas port erosion. Extreme heat enlarged the gas port to a point where insufficient gas pressure was available to cycle the action automatically.

Is the Smith & Wesson M&P15 Sport II considered a durable rifle for standard use?

Yes, despite failing under extreme full-auto conditions, the M&P15 Sport II is considered exceptionally rugged and a great value for standard semi-automatic use, outperforming expectations for an entry-level rifle.

What safety precautions were taken during the M&P15 Sport II meltdown test?

The tester, Eric, wore a Haven Gear riot suit and helmet for protection against potential catastrophic failure. The test was conducted using a registered machine gun lower receiver.

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