No More Pistol Suppressor Gas to the Face || 3rd Echelon Gas Cap

Published on March 6, 2026
Duration: 9:28

This guide details the installation and use of the 3rd Echelon Gas Cap, a modification designed to reduce gas blowback when shooting suppressed pistols. Expert instruction covers the explanation of suppressor gas dynamics, testing methodology, and the Gas Cap's functionality. The guide emphasizes proper installation and the importance of switching the Gas Cap to its 'off' position for disassembly.

Quick Summary

The 3rd Echelon Gas Cap mitigates suppressor gas blowback by extending the slide's rear geometry into a blast deflection cup, directing gas downwards away from the shooter. It's compatible with various Glock models and includes an 'off' position for disassembly, though its detent may be too light for some users.

Chapters

  1. 00:00Intro & Product Tease
  2. 00:46Introducing Gas Cap
  3. 01:00Suppressor Gas Blowback Explained
  4. 02:12Gas Leak Points
  5. 03:00Testing Methodology
  6. 03:24Test: Standard End Plate
  7. 04:28Test: Gas Cap Open
  8. 04:47Test: Gas Cap Closed
  9. 05:06How Gas Cap Works
  10. 05:32Disassembly Functionality
  11. 06:24Material & Compatibility
  12. 06:56Critiques & Improvements
  13. 08:32Verdict & Guarantee

Frequently Asked Questions

How does the 3rd Echelon Gas Cap reduce gas to the face when shooting a suppressed pistol?

The Gas Cap extends the slide's rear geometry, creating a blast deflection cup that directs backflowing gas downwards, away from the shooter's face and hands, rather than rearward through the slide rails and ejection port.

What Glock models are compatible with the 3rd Echelon Gas Cap?

The Gas Cap is available in variants for Glock Gen 3, 4, and 5; Gen V and 6; and slimline models including the Glock 43, 43X, and 48. Always check specific model compatibility.

Can the 3rd Echelon Gas Cap be used for pistol disassembly?

Yes, the Gas Cap features an 'off' position that can be flipped upwards, allowing the slide to be removed for standard Glock pistol disassembly. It must be in this position before attempting to field strip the firearm.

What are the potential drawbacks of the 3rd Echelon Gas Cap?

A noted critique is that the detent for the 'off' position may be too light, potentially leading to accidental disengagement during handling, especially with heavy suppressors. A stronger spring tension is suggested for future designs.

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