CMMG Resolute MK4 6mm ARC 16.1" 10+1 Semi-Auto Rifle - Midnight Bronze

The CMMG Resolute MK4 in 6mm ARC is a semi-auto AR-15 platform carbine purpose-built to harness the long-range ballistic performance of the 6mm ARC cartridge in a standard-pattern AR-15. The 6mm ARC was developed to deliver excellent downrange energy and accuracy while still running on AR-15-pattern magazines and components, and the Resolute MK4 is built from the ground up to take advantage of that capability in a familiar carbine footprint.

At the heart of the rifle is a 16.1" medium-taper threaded stainless steel barrel with a 1:7.5" twist rate, optimized to stabilize a wide range of 6mm ARC bullet weights and unlock the cartridge's accuracy potential. The barrel is finished off with the CMMG Zeroed muzzle brake to help manage felt recoil and keep the platform flat during rapid follow-up shots.

The upper and lower are machined from aluminum and finished in Midnight Bronze for a distinctive, low-glare appearance paired with solid corrosion resistance. The Resolute MK4 is built around the CMMG Zeroed controls package, including the CMMG Zeroed Drop-In Single Stage trigger for a clean, predictable break and the CMMG Zeroed 60/90 Degree safety selector, giving the rifle a fully outfitted controls suite right out of the box.

The carbine wears the CMMG 6-Position RipStock, allowing length-of-pull adjustment to fit a wide range of shooters and shooting positions, and ships with no iron sights installed so you can mount the optic of your choice directly to the optics-ready platform. With a 10+1 capacity fed from a detachable magazine, an overall length of 32.5", and a weight of 6.4 lbs, the Resolute MK4 keeps the handling and balance of a modern sporting carbine while extending its effective range well beyond traditional AR-15 chamberings. One 10-round magazine is included.

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