CMMG Resolute MK4 Upper .300 AAC Blackout 16.1 Barrel No BCG/Charging Handle
All CMMG upper receivers2 options
- Standard, this page
- Burnt Bronzeout of stock
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CMMG
Overview
The CMMG Resolute MK4 Upper is a complete upper receiver designed for the AR-15 platform, chambered in .300 AAC Blackout with a 16.1-inch barrel. This setup allows for effective performance in various shooting scenarios, providing versatility for both subsonic and supersonic ammunition. Builders often integrate this upper into configurations focused on compactness and maneuverability, making it suitable for a range of applications from tactical to recreational use.
Specifications
CMMG Resolute MK4 Upper .300 AAC Blackout 16.1 Barrel No BCG/Charging Handle
2 options
- Standard, this page
- Burnt Bronzeout of stock
Available Merchants(6)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have been adding the CMMG Resolute MK4 Upper .300 AAC Blackout 16.1 Barrel No BCG/Charging Handle to their builds on GunPartPicker since March 2026. All time, it ranks #284 of the 1,694 upper receivers builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 3 of the 6 retailers we track have it in stock. It dipped to $403.20 at BattleHawk Armory for a stretch in September 2026, well under its usual $462.59, so sales do come around. Buying today, the lowest price is $462.59 at GritR Sports, above September's low of $403.20, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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