Mud Test: $399 PSA M4

Published on December 20, 2023
Duration: 3:28

This video details a rigorous mud test on a $399 Palmetto State Armory (PSA) M4 clone, demonstrating its surprising reliability. Instructor Karl Kasarda subjected the rifle to extreme mud conditions, including direct application into the ejection port with the dust cover open. The PSA M4 clone, chambered in 5.56x45mm NATO, successfully fired multiple magazines under these harsh conditions, highlighting the robustness of the AR-15 platform's direct impingement system even in budget-friendly models.

Quick Summary

The $399 Palmetto State Armory M4 Clone proved highly reliable in a rigorous mud test, successfully firing multiple magazines despite submersion and direct mud application into its action. Instructor Karl Kasarda noted the AR-15's Direct Impingement system's resilience, even with the dust cover open, showcasing the platform's robustness in adverse conditions.

Chapters

  1. 00:00Introduction to PSA M4 Clone
  2. 00:40Initial Function Check
  3. 00:54First Mud Test (Closed Dust Cover)
  4. 01:25Second Mud Test (Open Dust Cover)
  5. 02:08Final Mud Test & Conclusion

Frequently Asked Questions

How did the $399 Palmetto State Armory M4 Clone perform in a mud test?

The PSA M4 Clone demonstrated remarkable reliability, successfully firing multiple magazines even after being submerged in mud and having mud directly applied to its open ejection port. This highlights the robustness of the AR-15 platform's direct impingement system on a budget firearm.

What is a Direct Impingement (DI) gas system and how does it relate to mud testing?

Direct Impingement is a common gas system where propellant gases travel through a tube to operate the bolt carrier. In this test, the DI system's resilience to mud ingress, even with the dust cover open, was thoroughly evaluated, showing it can maintain functionality under adverse conditions.

What features does the Palmetto State Armory M4 Clone have?

The Palmetto State Armory M4 Clone, tested for $399, comes equipped with standard AR-15 features such as heat shields, a dust cover, and a forward assist. Its performance in the mud test suggests good build quality for its price point.

Can a budget AR-15 like the PSA M4 Clone be reliable in harsh conditions?

Yes, the mud test on the $399 PSA M4 Clone suggests that budget AR-15s can be surprisingly reliable. The rifle's direct impingement system continued to function despite significant mud contamination, indicating that platform design and proper maintenance are key factors.

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