SOCOM Torture Test! MR556A4 & Lazarus 6 !

Published on March 2, 2025
Duration: 17:09

This video details a rigorous torture test on an HK MR556A4 upper receiver kit, focusing on the durability of its non-chrome lined barrel. The test involved firing 2,000 rounds (plus an additional 500 pre-test rounds) in rapid succession, simulating a SOCOM firing schedule, with and without a Dead Air Lazarus 6 suppressor. The firearm experienced zero malfunctions throughout the entire test, and surprisingly, its accuracy improved post-torture test, demonstrating exceptional resilience.

Quick Summary

The HK MR556A4 upper receiver, despite lacking a chrome-lined barrel, completed a 2,500-round torture test with zero malfunctions. It was run completely dry of lubricant and surprisingly showed improved accuracy post-test, achieving sub-MOA groupings, suggesting a chrome-lined barrel may not be essential for its durability.

Chapters

  1. 00:06Introduction to MR556A4 Upper
  2. 00:15The Torture Test Plan
  3. 00:55Initial Accuracy Test
  4. 01:42Ammunition and Setup
  5. 02:01SOCOM Firing Schedule Explained
  6. 03:57Suppressor Overheating
  7. 05:09Suppressor Loosens
  8. 06:02Continued Firing
  9. 08:12Waiting for Cool Down
  10. 09:11No Lubrication, No Malfunctions
  11. 10:03Test Completion
  12. 10:47Next Day: Accuracy Test
  13. 11:42Bone Dry Condition
  14. 12:16Post-Test Accuracy Results
  15. 13:29Lazarus 6 Suppressor Aftermath
  16. 14:01Pricing and Value Discussion
  17. 15:00Non-Chrome Lined Barrel Verdict
  18. 16:20Final Thoughts and Viewer Engagement

Frequently Asked Questions

How did the HK MR556A4 upper receiver perform in a torture test?

The HK MR556A4 upper receiver, featuring a non-chrome lined barrel, completed a 2,500-round torture test with zero malfunctions. It was run completely dry of lubricant and surprisingly showed improved accuracy post-test, achieving sub-MOA groupings.

Is a chrome-lined barrel necessary for the HK MR556A4?

This torture test suggests a chrome-lined barrel may not be essential for the MR556A4's durability. The non-chrome lined barrel performed exceptionally well, enduring extreme heat and high round counts without degradation, even improving its accuracy.

What was the outcome of the Dead Air Lazarus 6 suppressor during the test?

The Dead Air Lazarus 6 suppressor experienced significant heat and some minor baffle strikes when it loosened during firing. However, it remained functional and showed less erosion than expected, with Dead Air offering a lifetime warranty.

What is the price and value of the HK MR556A4 upper receiver?

The HK MR556A4 upper receiver has a retail price of approximately $2,200. After this extreme durability test, the reviewer found its performance comparable to high-end rifles, justifying the cost for those prioritizing reliability.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from Juicey Media

View all →