CMMG 28B260CCT Resolute | .22 ARC | 16.10 in Barrel

The CMMG Resolute 28B260CCT is an AR-15 upper built for the .22 ARC cartridge and designed to deliver .22-250 levels of ballistic performance in the Mk4 (AR-15) lineup. This complete upper features a 16.10 inch 4140 steel barrel and a 15 inch M-LOK handguard, and includes 7075-T6 aluminum components. It is intended to provide consistent function from the AR-15 platform and suits precision target work as well as varmint hunting.

Product Specifications

• The model is CMMG 28B260CCT Resolute.
• The manufacturer is CMMG.
• The caliber is .22 ARC.
• The barrel measures 16.10 inches.
• The barrel material is 4140 Steel.
• The handguard is a 15 inch M-LOK configuration.
• The rate of twist is 1:7.
• The assembly includes 7075-T6 Aluminum components.
• The design is intended for the AR-15 platform (Mk4).
• The part number is 28B260CCT.
• The category is listed as AR15 Uppers.
• The UPC is 810148627348.

This Resolute upper pairs real-world cartridge performance with practical features for shooters who prioritize reliable function and modularity. Its combination of a 16.10 inch 4140 steel barrel, 15 inch M-LOK handguard, and 7075-T6 aluminum construction makes it well suited for precision-oriented range use and field applications where flat trajectories and controllable recoil are valued.