The CMMG Resolute Mk4 in .22 ARC (CMMG part no. 28A670C-CT) is a carbine-length AR-15 rifle with a 16.1-inch barrel and a Coyote Tan Cerakote finish. CMMG fits it with its EML15 M-LOK handguard, a CMMG RipStock and a suite of ZEROED parts. The 22 ARC chambering delivers 22-250 class ballistics in the lightweight Mk4 platform. It is for shooters who want a flat-shooting carbine that is still light and handy.

Key Specifications

• The chambering is .22 ARC, a cartridge CMMG describes as delivering 22-250 level performance in the Mk4 platform.
• The barrel is 16.1 inches with a 1:7 twist, made of 4140CM steel.
• The magazine is a CMMG 10-round magazine, sized for the 22 ARC cartridge.
• The operating system is direct impingement, the proven AR-15 gas system.
• The handguard is a CMMG EML15 M-LOK design, with M-LOK slots at the 3, 6, 9 and 12 o’clock positions.
• The stock is the CMMG RipStock on a 6-position fastback receiver extension with an ambidextrous sling plate.
• The muzzle device is a ZEROED SVB brake on 1/2×28 threads, which also accepts other 1/2×28 devices.
• The gas block is adjustable 0.750-inch for tuning the rifle to your ammunition.
• The trigger is a ZEROED drop-in single stage, and the safety is a ZEROED 60/90 degree selector.
• The rifle weighs 6.4 pounds with a 32.5-inch overall length, a light and handy package.

Frequently Asked Questions

What is the Resolute Mk4 built for? CMMG describes the Resolute line as carbine-length rifles for shooters who find full-size rifles cumbersome and pistols or SBRs short on ballistic performance.

Can I thread a suppressor or another muzzle device? The barrel is threaded 1/2×28 and ships with a ZEROED SVB brake that can be swapped for another 1/2×28 device.

What magazine does it use? It uses a CMMG 10-round magazine.

Buy the CMMG Resolute Mk4 Rifle, .22 ARC, 16.1-Inch, Coyote Tan, 10-Round

CMMG builds its ZEROED rifles for shooters who want a complete, ready-to-run setup. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more rifles in our AR rifles.