The CMMG Resolute 22 ARC Upper (brand part number 28B260CMB) is a distinct finish variant of CMMG’s 22 ARC upper line, built for shooters chasing 22-250-level ballistic performance from a precision-focused AR15 build. Built by CMMG with a 16.10-inch barrel and a 7075-T6 aluminum receiver, this variant pairs with a 15-inch M-LOK handguard for mounting a bipod, sling, or other precision-shooting accessories while keeping the upper’s overall weight in check.

Key Specifications

• Chambered in 22 ARC for 22-250-level ballistic performance.
• Barrel length is 16.10 inches.
• Twist rate is 1:7, matched to 22 ARC bullet weights.
• Upper receiver is 7075-T6 aluminum.
• Handguard is a 15-inch M-LOK free-float design.
• Built on the Mk4 AR15 platform for standard lower compatibility.
• Engineered for reliable cycling of 22 ARC pressures on a standard AR15 bolt and gas system.
• Barrel length of 16.10 inches clears the federal 16-inch rifle minimum.
• Handguard uses M-LOK slots for direct accessory attachment without a rail adapter.

Frequently Asked Questions

Is 22 ARC good for precision shooting? Yes, its flat trajectory and consistent function on the AR platform make it a strong option for precision and long-range work.

Does this include a bolt carrier group? Confirm current BCG inclusion on the listing before ordering, as configurations can vary by finish option.

Buy the CMMG Resolute 22 ARC Upper

Build a precision-focused 22 ARC upper on a lightweight M-LOK platform. Order this AR-15 upper from our Lubbock, Texas gun shop, and we will get it to your door as soon as it’s ready to ship.