Product Preview: CMMG 9 AR Conversion Adapters

by
posted on October 29, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
cmmg-9-arc-adapters.jpg

AR-style pistol-caliber carbines chambered for 9 mm Luger typically require the use of a dedicated 9 mm lower receiver, but CMMG’s 9 AR Conversion (9 ARC) Magazines remove that requirement by allowing any unmodified AR-15 lower to function with the company’s Radial Delayed Blowback 9 mm Luger upper receivers. And taking the versatility of the system even further, CMMG’s 9 AR Conversion Adapters allow any standard (.223 Rem.) 30-round Gen 2 or Gen 3 Magpul PMAGs to be temporarily altered for 9 ARC compatibility. Just remove the magazine’s baseplate retainer and spring, insert the CMMG adapter, compress the spring and slide the factory baseplate back into place. Capable of up to a full 30 rounds of ammunition, the adapters can also be modified to limit capacity to either 10, 15 or 20 rounds. These adapters are available for $30 each, or $80 for a pack of three. For more information, please visit cmmginc.com.

Additional Reading:
NRA Gun of the Week: CMMG Resolute 300 MK4 Rifle
NRA Gun of the Week: CMMG Mk57 Banshee
Product Preview: CMMG RipStock Buttstock Assembly
Tested: CMMG MK4 Banshee .22 LR Pistol

Latest

New Semi-Automatic Rifles for 2026
New Semi-Automatic Rifles for 2026

New Semi-Automatic Rifles for 2026

While the AR-pattern design continues to be the most popular and prolific semi-automatic rifle platform in America, don't think that means that there aren't other great, new options emerging on the market.

President’s Column | Hope Is Not a Strategy

It was great meeting so many enthusiastic and supportive NRA members at the NRA Annual Meeting in Houston. Your words of encouragement and suggestions are propelling your NRA 2.0 forward.

Data Centers Planned for Remington’s Legendary Factory Site

The historic Ilion, N.Y., factory that produced Remington firearms and parts for nearly 200 years may soon become the site of a 200-megawatt data center.

Washington's Gunpowder Shortage: The Issue That Almost Ended the Revolution

Today, the United States is facing a shortage of ammunition. But this situation is nothing new, and a similar sort of circumstance faced our Founding Fathers at the beginning of the American Revolution.

Standing Guard | Be Thankful Your NRA Is Here

In any struggle, but particularly in one for human freedom, we should stop and look back now and then, as a backward glance can remind us of our true course.

The 92G Elite Combat LTT: A Beretta & Langdon Tactical Collaboration

Beretta continues refining and updating the 92 design, and its latest collaboration with Langdon Tactical Technologies resulted in the 92G Elite Combat LTT, a handgun designed for both competition and duty use.

Interests



Get the best of American Rifleman delivered to your inbox.