CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black
$929.99 at OpticsPlanet
In stock Sale
CMMG Mk3 .308WIN Endeavor Upper Group Receiver 24in Charcoal Green
No ratings yetBest price
$1,089.00at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Bl… $929.99at OpticsPlanet
- Rock River Arms Completed Upper Receiver Predator HP A4 .308/7.… $967.99at MidwayUSA
- Patriot Ordnance Factory Rogue 16.50" Upper .308 Win 1:8 M-LOK … $1,376.53at Kentucky Gun Co
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $1,089.00Salechecked 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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This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
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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 | $1,089.00 | $1,089.00 | $1,089.00 |
Since Oct 14, 2026.
About this part
The CMMG Mk3 .308WIN Endeavor Upper Group Receiver 24in Charcoal Green is a 24" .308 / 7.62x51 upper receiver from CMMG. One store lists it, OpticsPlanet at $1,089.00.
Fits and works with
- Caliber
- .308 / 7.62x51 · Shop matching ammo
- Bolt
- AR-10 (.308 / 6.5 CM) · Bolt carrier groups
- Barrel length
- 24" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Green
- Platform
- AR-10
- Caliber
- .308 / 7.62
From the manufacturer
CMMG Mk3 .308WIN Endeavor Upper Group Receiver 24in Charcoal Green. 308 WIN ENDEAVOR Mk3 Upper Group is purpose built for long-range performance. Quality is always top concern thats why the 416 stainless steel barrel is nitrided for maximum corrosion resistance that doesnt sacrifice ballistic performance. The CMMG Mk3 platform is based on the popular LR-308/DPMS Gen 1 High-Pattern design. Check out our CMMG Resources article to learn more about the Mk3 platform. Specifications for CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver: Manufacturer: CMMG Caliber: .308 Winchester Barrel Length: 24 in Barrel Profile: Medium Tapered Gas System Length: Rifle Length Barrel Twist Rate: 1-7 Muzzle Device: CMMG Zeroed Muzzle Brake Fabric/Material: 6061-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: CMMG Gun Model: CMMG Mk4 Weight: 4.5 lb Magazine Included: No Mount Type: M-LOK Threads per Inch: 1/2x28 Package Contents: CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver What firearm models does the manufacturer say CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver is compatible with? The manufacturer suggests that CMMG Mk3 .308WIN 24in Endeavor Upper Group Receiver is compatible with CMMG Mk4CMMG 38B4BC8-CG: Mk3 .308WIN Endeavor Upper Group Receiver 24in Charcoal Green
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