The CMMG Resolute Mk4 .300 AAC Blackout rifle in Coyote Tan Cerakote (brand part no. 30AE70ACT) is a full-size 16.1-inch carbine for range days and general-purpose use. It pairs a 16.1-inch barrel with a ZEROED SVB muzzle brake and a 30-round magazine. CMMG builds it on the Resolute carbine-length platform with the EML15 M-LOK handguard and the RipStock, finished in Coyote Tan. The ZEROED drop-in trigger, ambidextrous 60/90-degree safety and ambi charging handle are fitted as standard. It is a straightforward, ready-to-run .300 AAC Blackout AR rifle for shooters who want the factory ZEROED parts without building one.

Key Specifications

• Chambering is .300 AAC Blackout (.300 BLK), which sets the ammunition this Mk4 build is designed around.
• The barrel is 16.1 inches long and made from 4140 chrome-moly steel, a carbine-length profile that keeps the rifle compact.
• Rifling twist is 1:7, the rate CMMG specifies for this chambering.
• A ZEROED SVB muzzle brake is installed from the factory, so the rifle arrives with its muzzle device already fitted.
• The muzzle is threaded 5/8×24, the pitch to match when you choose a different muzzle device.
• Magazine capacity is 30 rounds, and the rifle ships with a Magpul PMAG.
• The action is direct impingement with an adjustable gas block, so the gas system can be tuned.
• The handguard is the CMMG EML15 M-LOK with M-LOK slots, giving you mounting space for lights, grips and other accessories.
• The stock is the CMMG RipStock on a CMMG 6 Position Fastback with Ambi Sling Plate receiver extension.
• The finish is Cerakote in Coyote Tan, a hard coating chosen for wear resistance and a consistent look.

Frequently Asked Questions

What finish does this .300 AAC Blackout Resolute come in? This one is finished in Coyote Tan Cerakote, the color named in the SKU. Other colors are separate listings.

How many rounds does it hold? It ships with a 30-round magazine (Magpul 30rd PMAG), the capacity CMMG lists for this .300 AAC Blackout Mk4 rifle.

What are the barrel length and twist? The barrel is 16.1 inches with a 1:7 twist, chambered in .300 AAC Blackout.

Buy the CMMG Resolute Mk4 Rifle, .300 AAC Blackout, 16.1-Inch, Muzzle Brake, Coyote Tan, 30-Round

If you want a carbine-length .300 AAC Blackout rifle that already carries CMMG’s ZEROED upgrades, this Coyote Tan Resolute Mk4 is built that way from the factory. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles while you are here.