The CMMG Resolute 22 ARC Upper (brand part number 28B260CAB) is a versatile, multi-role finish variant of CMMG’s 22 ARC upper line, suited equally to varmint hunting, range days, and general-purpose AR15 duty. Built by CMMG with a 16.10-inch barrel and a 7075-T6 aluminum receiver, this upper delivers 22-250-level ballistic performance in a platform that cycles reliably through a standard AR15, paired with a 15-inch M-LOK handguard for mounting lights, grips, or optics.

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 this upper suited to more than one use case? Yes, the flat-shooting 22 ARC cartridge works well for varmint hunting, range days, and general AR15 use alike.

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

Add a flat-shooting, do-it-all upper to your AR15 lineup. Order this AR-15 upper from our Lubbock, Texas gun shop for fast, insured shipping to your door.