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CMMG
Overview
The CMMG Resolute Upper is a complete upper receiver designed for the AR-9 platform, featuring a 16.1-inch barrel specifically chambered in 9mm. It utilizes a carbine-length gas system, which offers reliable cycling and performance for this caliber, making it suitable for both competitive shooting and tactical applications. This upper is commonly found in builds focused on versatility and ease of handling, ideal for those looking to create a lightweight, low-recoil firearm.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG Resolute Upper 9mm 16.1 Barrel to a build in April 2026.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $776.28 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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