CMMG Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Coyote Tan
No ratings yetBest price
$1,299.00at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- CMMG DISSENT Mk4 5.56x45mm NATO 10.5in Upper Receiver 1-7 Twist… $1,035.99at GunMag Warehouse
- CMMG Dissent 10.50" Upper 5.56x45mm with 1:7 Twist Rate and M-L… $1,024.99at GunMag Warehouse
- Noveske Chainsaw .223 Remington Upper with 16" Barrel, Black $1,300.00at MidwayUSA
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.
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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 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Coyote Tan is a 16.1" 5.56 / .223 upper receiver from CMMG. One store lists it, OpticsPlanet at $1,299.00.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Coyote Tan
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
CMMG Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Coyote Tan. The 5.56mm DISSENT upper group with a 16.1" barrel is a hard choice to pass up. Pair with a mil-spec compatible lower receiver and the included 1913 Picatinny rear end plate you can add accessories like slings if you're going for a pistol build or a folding stock if a compact carbine is more your style. 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 5.56mm 16.1in Upper Group: Manufacturer: CMMG Caliber: 5.56x45mm NATO Overall Length: 25.5 in Barrel Length: 16.1 in Gas System Length: Mid Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2x28 Muzzle Device: CMMG Zeroed Muzzle Brake Finish: Cerakote Fabric/Material: Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Make: CMMG Weight: 5.05 lb Gas System Type: Direct Impingement Magazine Included: No Package Contents: CMMG Dissent Mk4 5.56mm 16.1in Upper Group CMMG 55BC737-CT: Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Coyote Tan
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