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CMMG
Overview
The CMMG 28B260CAB Resolute MK4 .22 ARC 16.1 Complete Upper Receiver is a fully assembled upper designed for the AR-15 platform, offering a barrel length of 16.1 inches and chambered in 6mm ARC. This configuration not only provides versatility for various shooting applications but also enhances accuracy and performance with the specific caliber. This upper receiver is often found in precision builds where versatility and reliable performance are key considerations.
Specifications
CMMG 28B260CAB Resolute MK4 .22 ARC 16.1 Complete Upper Receiver
Available Merchants(4)
Prices checked
Price Alert
September 2026 on GunPartPicker
CMMG 28B260CAB Resolute MK4 .22 ARC 16.1 Complete Upper Receiver ranked #267 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since July 2026. All time, it ranks #477 of the 1,683 upper receivers builders have added.
It was in stock most days in September 2026, and today 2 of the 4 retailers we track have it in stock. It dipped to $675.70 at BattleHawk Armory for a stretch in September 2026, under its usual $707.99 to $729.99, so sales do come around. Buying today, the lowest price is $707.99 at GritR Sports.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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