CMMG Resolute Upper Receiver Group 9mm 16.1in Armor Black
$1,024.99 at GunMag Warehouse · 2 stores
In stock
CMMG Upper Group Resolute Fixed Ejector 9mm 16.1in 1-10 Twist 1/2 X 28 TPI 25.3in Armor Black
No ratings yetBest price
$956.71at MidwayUSA
In stock checked Oct 22, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $956.71checked Oct 22, 2026 | In stock | Buy at MidwayUSA | |
| OpticsPlanet | $899.99Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $956.71 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 14, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $956.71 | $956.71 | $956.71 |
| OpticsPlanet | $899.99 | $899.99 | $899.99 |
Since Oct 14, 2026.
About this part
The CMMG Upper Group Resolute Fixed Ejector 9mm 16.1in 1-10 Twist 1/2 X 28 TPI 25.3in Armor Black is a 16.1" 9mm upper receiver from CMMG. It's sold by 2 stores (1 in stock), from $899.99 to $956.71. The lowest in-stock price in the last 30 days was $956.71 at MidwayUSA.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Black
- Platform
- AR-9
- Caliber
- 9mm
From the manufacturer
CMMG Upper Group Resolute Fixed Ejector 9mm 16.1in 1-10 Twist 1/2 X 28 TPI 25.3in Armor Black. Compact action RDB was an advancement to the original RDB. This (fixed ejector on RDB) is a continued advancement bringing new technologies to the original platform. Looking to build the ultimate 9mm pistol caliber carbine? We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably CMMG this upper group is designed to work with a number of different lower receivers. From standard AR15 lowers (when used with AR 9 conversion mags) to any of our pistol magazine lowers (Mk9 MkGs and Mk17) you can build your next PCC exactly how you imagine. Specifications for CMMG Resolute Fixed Ejector 9mm 16.1in Upper Group: Manufacturer: CMMG Caliber: 9mm Luger Overall Length: 25.3 in Barrel Length: 16.1 in Barrel Twist Rate: 1-10 Firearms Threads Per Inch: 1/2x28 Muzzle Device: CMMG Zeroed Muzzle Brake Finish: Cerakote Fabric/Material: Aluminum Gun Rail: M-LOK Weight: 4 lb Barrel Material: 4140 Chrome Moly Vanadium Magazine Included: No Package Contents: CMMG Resolute Fixed Ejector 9mm 16.1in Upper Group CMMG 99BA20F-AB: Upper Group Resolute Fixed Ejector 9mm 16.1in 1-10 Twist 1/2 X 28 TPI 25.3in Armor Black
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