The CMMG Resolute Mk3 8.6 Blackout rifle in Armor Black Cerakote (brand part no. 33A590C-AB) is a big-bore AR for range work and hunting. It pairs a 16.1-inch barrel with a ZEROED SVB muzzle brake and a 20-round magazine. CMMG builds it on the Resolute carbine-length platform with the EML15 M-LOK handguard and the RipStock, finished in Armor Black. The ZEROED drop-in single-stage trigger, ambidextrous 60/90-degree safety and ambi charging handle are fitted as standard. It is a straightforward, ready-to-run 8.6 Blackout AR rifle for shooters who want the factory ZEROED parts without building one.

Key Specifications

• Chambering is 8.6 BLK (8.6 Blackout), which sets the ammunition this Mk3 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 1:3, 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 20 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 Armor Black, a hard coating chosen for wear resistance and a consistent look.

Frequently Asked Questions

Does it come with a muzzle brake? Yes. A ZEROED SVB brake is installed on the 16.1-inch barrel, which is threaded 5/8×24 for a different muzzle device if you prefer one.

What finish does this 8.6 Blackout Resolute come in? This one is finished in Armor Black Cerakote, the color named in the SKU. Other colors are separate listings.

What are the barrel length and twist? The barrel is 16.1 inches with a 1:3 twist, chambered in 8.6 Blackout.

Buy the CMMG Resolute Mk3 Rifle, 8.6 Blackout, 16.1-Inch, Muzzle Brake, Armor Black, 20-Round

If you want a carbine-length 8.6 Blackout rifle that already carries CMMG’s ZEROED upgrades, this Armor Black Resolute Mk3 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.