CMMG Guard - Radial Delayed Blowback System

Published on July 22, 2018
Duration: 22:03

This video provides an in-depth review of the CMMG Guard carbine, focusing on its innovative radial delayed blowback operating system. The presenter, from SmallArmsSolutions, details the mechanical advantages over traditional blowback systems, including reduced recoil and improved suppressor performance. The review covers the firearm's construction, compatibility with Glock magazines, and performance with various ammunition types in both 9mm and .45 ACP variants.

Quick Summary

The CMMG Guard features a radial delayed blowback system, a significant innovation over traditional blowback designs. This system reduces felt recoil and reciprocating mass, improves suppressor performance by minimizing gas blowback, and allows for reliable cycling with various ammunition types, including Glock magazines.

Chapters

  1. 00:10Introduction to CMMG Guard
  2. 00:28Radial Delayed Blowback System Overview
  3. 00:42Basic Carbine Features
  4. 01:15Barrel and Muzzle Brake
  5. 01:26Lower Receiver and Controls
  6. 01:52Glock Magazine Compatibility
  7. 03:29Bolt Lock Open Mechanism
  8. 05:10Operating Mechanism Deep Dive
  9. 06:01Radial Delayed Blowback Explained
  10. 09:03Adjustable Weights System
  11. 10:22New Territory for Calibers
  12. 11:15Suppressor Testing
  13. 12:23Range Footage and Accuracy
  14. 13:10Suppressed Shooting Test
  15. 17:07CMMG Guard in .45 ACP
  16. 21:08Industry Innovation

Frequently Asked Questions

What is the primary advantage of the CMMG Guard's radial delayed blowback system?

The primary advantage of the CMMG Guard's radial delayed blowback system is its ability to significantly reduce felt recoil and reciprocating mass compared to traditional direct blowback systems, leading to a smoother shooting experience and faster follow-up shots.

How does the radial delayed blowback system work in the CMMG Guard?

The radial delayed blowback system uses angled lugs on the bolt that engage with the barrel extension. As the bolt unlocks, a cam pin moves through a cam track, gradually releasing these lugs. This process delays the bolt's opening until chamber pressures have safely dropped, allowing for controlled extraction.

Is the CMMG Guard compatible with Glock magazines?

Yes, the CMMG Guard is designed to be compatible with Glock magazines. While older or aftermarket magazines might occasionally have issues with the bolt holding open on the last round, new production Glock magazines generally function flawlessly.

Can the CMMG Guard be used effectively with suppressors?

Yes, the radial delayed blowback system makes the CMMG Guard highly compatible with suppressors. It results in less gas blowback to the shooter's face compared to traditional blowback firearms, enhancing the suppressed shooting experience.

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