Review: Garand Gear M1 Gas Plug

Published on July 22, 2016
Duration: 9:19

The Garand Gear M1 Gas Plug, a non-adjustable alternative to the Schuster plug, was tested for its effectiveness in reducing operating rod velocity with commercial .30-06 ammunition. While it offered a minor reduction with M2 Ball, it actually increased op-rod speed with high-velocity and heavy commercial loads, failing to meet safe military specifications. The plug also suffers from poor tool fitment, making the Schuster adjustable plug a superior option for the same price.

Quick Summary

The Garand Gear M1 Gas Plug increases gas cylinder volume but failed to safely reduce operating rod velocity with high-velocity commercial ammo, even increasing it by 10-15%. The standard M1 Garand combo tool also does not fit it properly, making the Schuster adjustable plug a better choice.

Chapters

  1. 00:22Intro: Garand Gear vs Schuster Plug
  2. 01:19Design: Garand Gear vs Schuster
  3. 03:55Testing: Ammo & Methodology
  4. 04:22Test Results: Op-Rod Velocity
  5. 06:32Safety Margins & Recommendations
  6. 07:50Final Verdict & Tool Fitment

Frequently Asked Questions

How does the Garand Gear M1 Gas Plug work?

The Garand Gear M1 Gas Plug increases the total volume of the gas cylinder by hollowing out the plug. This theoretically reduces the peak pressure acting on the operating rod when firing, aiming to mitigate excessive cycling speed with commercial ammunition.

Did the Garand Gear M1 Gas Plug reduce operating rod velocity?

With standard M2 Ball ammo, it reduced op-rod velocity by about 5%. However, with high-velocity and heavy commercial loads, it actually increased velocity by 10-15% compared to military specifications.

Is the Garand Gear M1 Gas Plug recommended over the Schuster adjustable plug?

No, the review suggests the Schuster adjustable plug is superior. It offers better performance across a wider range of ammunition and is recommended over the Garand Gear plug, especially considering the latter's tool fitment issues.

What issues were found with the Garand Gear M1 Gas Plug?

The primary issue is that the standard M1 Garand combo tool does not fit the Garand Gear plug properly. Performance-wise, it failed to safely reduce operating rod velocity with heavier commercial loads.

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