CMMG 9mm AR Conversion Magazine Review

Published on November 27, 2019
Duration: 9:16

This video reviews the CMMG 9mm AR conversion system, focusing on their Resolute upper and conversion magazines. The presenter, Joel Persinger of Gun Guy TV, highlights the system's compatibility with standard AR-15 lowers, especially in California where it can be configured as a legal featureless rifle. He emphasizes the reliability and cost-effectiveness of shooting 9mm for practice and the modularity it brings to the AR platform.

Quick Summary

The CMMG 9mm AR conversion system, featuring their Resolute upper and radial delayed blowback system, allows 9mm shooting from a standard AR-15 lower. It's known for flawless reliability and can be configured legally in states like California as a featureless rifle with 10-round magazines.

Chapters

  1. 00:09Introduction & Channel Support
  2. 00:48AR-15 Lower & California Featureless Build
  3. 01:40CMMG 9mm Resolute Upper & Radial Blowback System
  4. 02:01CMMG 9mm Conversion Magazine Overview
  5. 02:17Magazine Options: CMMG Direct vs. Conversion Kit
  6. 03:05Modifying PMAGs for 9mm Conversion
  7. 04:10Magazine Compatibility & Radial Blowback System
  8. 04:46Reliability Testing & Ammunition Types
  9. 05:13Benefits of 9mm Pistol Caliber Carbines (PCCs)
  10. 05:29Cost Savings & Practice Ammunition
  11. 05:44Reloading 9mm vs. .223/5.56
  12. 06:07Shooting Steel & Home Defense Considerations
  13. 06:49Ergonomics & Ease of Use for PCCs
  14. 07:25Modularity of AR Platform with PCC Conversion
  15. 07:54Build Quality & Finishes
  16. 08:30Shorter Uppers & California Restrictions
  17. 08:57Conclusion & Thanksgiving Wishes

Frequently Asked Questions

What is the CMMG 9mm AR conversion system?

The CMMG 9mm AR conversion system allows you to shoot 9mm ammunition from a standard AR-15 lower receiver. It typically involves a CMMG upper receiver with their proprietary radial delayed blowback system and specialized 9mm conversion magazines.

Are CMMG 9mm conversion magazines compatible with all AR-15 uppers?

No, CMMG 9mm conversion magazines are designed specifically for CMMG's radial delayed blowback operating system. They will not function with standard blowback 9mm AR uppers.

How can the CMMG 9mm AR conversion be legal in California?

In California, the CMMG 9mm upper can be used on a featureless AR-15 lower receiver with CMMG's 10-round conversion magazines, which meets the state's legal requirements for featureless rifles.

What are the advantages of using a 9mm pistol caliber carbine on an AR platform?

Key advantages include significantly cheaper ammunition for practice, easier reloading, and a more stable shooting platform than a handgun. It also enhances the modularity of the AR-15 platform.

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