CMMG DISSENT Mk4 5.56x45mm NATO 10.5in Upper Receiver 1-7 Twist .750in 1/2 X 28 TPI Tungsten
$1,035.99 at GunMag Warehouse · 2 stores
In stock
CMMG UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Midnight Bronze
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 14, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $1,299.00 | $1,299.00 | $1,299.00 |
Since Oct 14, 2026.
About this part
The CMMG UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Midnight Bronze 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
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Bronze
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
CMMG UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Midnight Bronze. 56mm combines precision engineering with versatile compatibility. This complete upper assembly features a 16.1" Empire Profile barrel with an unthreaded muzzle and recessed target crown. The medium-taper barrel design optimizes weight distribution while meeting specific state requirements. Built on CMMG's proven Mk4 platform this upper group is ready to perform. Specifications for CMMG Dissent Mk4 5.56mm 16.1in Empire Profile Upper Group: Manufacturer: CMMG Caliber: 5.56mm Overall Length: 25 in Barrel Length: 16.1 in Barrel Profile: Bull Gas System Length: Mid Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: Non Threaded Handguard Type: M-LOK ATLAS S-ONE Muzzle Device: No Fabric/Material: Aluminum Handguard Length: 15 in Gun Rail: M-LOK Gun Make: CMMG Gun Model: CMMG Dissent MK4 Weight: 4 lb 3.9 lb Barrel Material: 4140 Chrome Moly Vanadium Magazine Included: No Features of CMMG Dissent Mk4 5.56mm 16.1in Empire Profile Upper Group Complete Mk4 DISSENT upper assembly 16.1" barrel in 5.56mm Empire Profile medium-taper design Unthreaded muzzle with recessed target crown State-compliant configuration Ready to install on compatible lower receivers Package Contents: CMMG Dissent Mk4 5.56mm 16.1in Empire Profile Upper Group What firearm models does the manufacturer say CMMG Dissent Mk4 5.56mm 16.1in Empire Profile Upper Group is compatible with? The manufacturer suggests that CMMG Dissent Mk4 5.56mm 16.1in Empire Profile Upper Group is compatible with CMMG Dissent MK4CMMG 55B8D0B-MB: UPPER GROUP DISSENT Mk4 5.56mm 16.1in Empire Profile Non-Threaded Midnight Bronze
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