CMMG Dissent in 300 Blackout! Virtus Competitor?

Published on December 23, 2022
Duration: 24:11

This guide details the field stripping process for the CMMG Dissent, a compact AR-15 platform firearm. It covers the disassembly of the bolt carrier group and recoil assembly, emphasizing the unique dual guide rod system. The information is presented with an expert's analytical tone, drawing parallels to historical designs like the AR-180 and modern systems like the Sig MCX.

Quick Summary

The CMMG Dissent in 300 Blackout features a compact direct impingement system, offering a milder recoil impulse. It functions with standard 5.56 magazines for supersonic 300 BLK, but 300 BLK specific magazines are recommended for subsonic rounds. The upper receiver includes a forward charging handle and an adjustable gas block for tuning suppressed fire.

Chapters

  1. 00:10Introduction to CMMG Dissent
  2. 01:58AR-180 History and Influence
  3. 03:16Comparison with Sig Rattler
  4. 04:56Magazine and Ammo Testing
  5. 08:01Internal Design Comparison
  6. 09:11Upper Receiver and Gas System Breakdown
  7. 11:28Lower Receiver and Controls
  8. 12:52Field Stripping the Dissent
  9. 14:10Final Assessment

Frequently Asked Questions

What is the operating system of the CMMG Dissent?

The CMMG Dissent utilizes a compact direct impingement (DI) operating system. This system directs gas from the fired cartridge back into the upper receiver to cycle the action, offering a milder recoil impulse compared to some other systems.

How does the CMMG Dissent compare to the Sig Rattler?

While both are compact firearms, the CMMG Dissent uses a direct impingement system, whereas the Sig Rattler employs a short-stroke gas piston. The Dissent's DI system is noted for providing a milder recoil impulse.

What ammunition and magazine considerations are important for the CMMG Dissent in 300 Blackout?

The Dissent functions reliably with standard 5.56 magazines for supersonic 300 Blackout. However, for subsonic 300 Blackout rounds, specific 300 Blackout magazines are recommended due to differences in bullet geometry.

What are the key features of the CMMG Dissent's upper receiver?

The Dissent's upper receiver features a unique forward charging handle, a standard AR-15 barrel and nut, and an adjustable gas block. This adjustable gas block allows users to fine-tune the firearm's performance, particularly when using suppressors.

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