The CMMG Resolute MkG .45 ACP semi-auto rifle (CMMG part no. 45A690FCT) runs Glock-pattern .45 ACP magazines through CMMG’s Fixed Ejector Radial Delayed Blowback operating system, finished in Coyote Tan. Built as a carbine-length rifle for shooters who find full-size rifles too cumbersome but want more range than a pistol or SBR delivers, the Resolute pairs CMMG’s ZEROED parts suite with the company’s RipStock for a rifle that handles as good as it looks.

Key Specifications

• Chambered in .45 ACP, a proven heavy-hitting pistol caliber with over a century of service history.
• Runs CMMG’s Fixed Ejector Radial Delayed Blowback operating system, an advancement on the brand’s original delayed-blowback design.
• The 16.1-inch barrel uses a 1:16-inch twist and a 4140CM SBN barrel material.
• Feeds from Glock-pattern 13-round magazines, letting owners of Glock-pattern pistols share ammunition sources.
• Equipped with the CMMG EML15 M-LOK handguard, with mounting slots at 3, 6, 9, and 12 o’clock.
• Fitted with the CMMG RipStock and a 6-position Fastback receiver extension.
• The CMMG ZEROED muzzle brake is threaded 0.578×28.
• Finished in Coyote Tan Cerakote.
• Weighs approximately 6 pounds with an overall length of about 32.5 inches.

Frequently Asked Questions

What magazines does this rifle use? It runs Glock-pattern .45 ACP magazines, in a 13-round configuration.

What is Fixed Ejector Radial Delayed Blowback? It is CMMG’s continued advancement on their original radial delayed blowback system, bringing new technology to the .45 ACP platform.

What is the RipStock? It is CMMG’s proprietary stock, part of the ZEROED parts suite fitted to the Resolute line.

Buy the CMMG Resolute MkG .45 ACP Rifle

CMMG built the Resolute for shooters who want more reach than a pistol without the bulk of a full-size rifle, and this Coyote Tan configuration delivers that in a proven Glock-magazine-compatible package. Backed by CMMG and part of our semi-auto rifles lineup, it suits shooters who already run Glock-pattern .45 ACP magazines. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.