CMMG Resolute MK4 Upper .22 LR 17 Barrel
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CMMG
Overview
The CMMG Resolute MK4 Upper is a complete upper receiver designed for the AR-15 platform, chambered specifically for .22 LR ammunition. With a generous 17-inch barrel length, this upper enhances accuracy and stability, making it suitable for both recreational shooting and training purposes. This upper commonly appears in builds focused on varmint hunting and plinking due to its caliber and configuration.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG Resolute MK4 Upper .22 LR 17 Barrel to a build in May 2026.
Today the one retailer we track is out of stock. Listed prices start at $576.01 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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