CMMG Dissent Mk4 .22 ARC 16.1 Upper Group 1-7 Twist 25.5in 1/2x28 TPI .750in Midnight Bronze
$1,299.99 at MidwayUSA · 2 stores
In stock
CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group 1-8 Twist .750in 25.5in 5/8 X 24 TPI Tungsten
No ratings yetBest price
$1,299.00at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- CMMG Dissent Mk4 .22 ARC 16.1 Upper Group 1-7 Twist 25.5in 1/2x… $1,299.99at MidwayUSA
- CMMG Upper Group Dissent Mk47 7.62X39 16.1in 1-10 Twist 5/8 X 2… $1,219.00at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $1,299.00Salechecked 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.
Similar upper receivers in stock
This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
CMMG Upper Group Dissent Mk47 7.62X39 16.1in 1-10 Twist 5/8 X 24 TPI .750in 26in Tungsten
$1,219.00 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Oct 13, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $1,299.00 | $1,299.00 | $1,299.00 |
Since Oct 13, 2026.
About this part
The CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group 1-8 Twist .750in 25.5in 5/8 X 24 TPI Tungsten is a 16.1" AR-15 upper receiver from CMMG. One store lists it, OpticsPlanet at $1,299.00.
Fits and works with
- Muzzle thread
- 5/8x24 · Muzzle devices
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Tungsten
- Platform
- AR-15
From the manufacturer
CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group 1-8 Twist .750in 25.5in 5/8 X 24 TPI Tungsten. 5 Grendel that's exactly what you get; Bigger bore ballistics and energy without the felt recoil. This upper group comes ready to pair with an existing DISSENT lower or that new AR15 lower build you've had waiting. Utilizing our patent pending direct impingement Compact Action DISSENT upper groups house the entire action and recoil assembly in the upper receiver resulting in less bulk and length than traditional AR pistols. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. Direct impingement DISSENTS come equipped with a left side charger standard. Right side charging handles for DI models are available here. All DISSENT Upper groups include a 1913 Picatinny rail end plate to use in place of the lower receiver buffer tube. Specifications for CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group: Manufacturer: CMMG Caliber: 6.5mm Grendel Overall Length: 25.5 in Barrel Length: 16.1 in Barrel Twist Rate: 1-8 Firearms Threads Per Inch: 5/8x24 Muzzle Device: CMMG Zeroed Muzzle Brake Finish: Cerakote Fabric/Material: Aluminum Handguard Style: M-LOK w/ Top Picatinny Rail System Gun Type: Rifle Gun Make: CMMG Gun Model: CMMG Mk4 Gas System Type: Direct Impingement Magazine Included: No Condition: New Package Contents: CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group What firearm models does the manufacturer say CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group is compatible with? The manufacturer suggests that CMMG Dissent Mk4 6.5mm Grendel 16.1in Upper Group is compatible with CMMG Mk4CMMG 64B6D0C-TNG: Dissent Mk4 6.5mm Grendel 16.1in Upper Group 1-8 Twist .750in 25.5in 5/8 X 24 TPI Tungsten
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