Faxon Firearms Match Series AR-15 6.5 Grendel 16in Upper Receiver Gunner Mid Length 1-8 Twist 5/8x24 w/BCG Black
$805.00 at MidwayUSA · 2 stores
In stock
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green
No ratings yetBest price
$819.99at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- Faxon Firearms Match Series AR-15 6.5 Grendel 16in Upper Receiv… $805.00at MidwayUSA
- Faxon Firearms Match Series AR-15 6.5 Grendel 16in Upper Receiv… $863.00at MidwayUSA
- Alexander Arms Tactical 16" Upper 6.5 Grendel 1:8, Black $712.49at Ammunition Depot
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $819.99Salechecked 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.
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.
Faxon Firearms Match Series AR-15 6.5 Grendel 16in Upper Receiver Gunner Mid Length 1-8 Twist 5/8x24 w/BCG Supressor Black
$863.00 at MidwayUSA · 3 stores
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Alexander Arms Tactical 16" Upper 6.5 Grendel 1:8, Black
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LaRue Tactical Complete Match Grade Upper Receiver 18in 6.5 Grendel 1-7 Twist A2 Flash Hider Black
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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 | $819.99 | $819.99 | $819.99 |
Since Oct 14, 2026.
About this part
The CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green is a 16.1" 6.5 Grendel upper receiver from CMMG. One store lists it, OpticsPlanet at $819.99.
Fits and works with
- Caliber
- 6.5 Grendel · Shop matching ammo
- Bolt
- 6.5 Grendel / 6mm ARC · Bolt carrier groups
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Green
- Platform
- AR-15
- Caliber
- 6.5 Grendel
From the manufacturer
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the Mk4 platform and works with any standard AR15 lower group. Specifications for CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver: Manufacturer: CMMG Caliber: 6.5mm Grendel Overall Length: 25 in Barrel Profile: Medium Tapered Gas System Length: Rifle Length Barrel Twist Rate: 1-8 Muzzle Device: CMMG Zeroed Muzzle Brake Fabric/Material: 6061-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Make: CMMG Gun Model: CMMG Mk4 Weight: 4.3 lb Magazine Included: No Mount Type: M-LOK Package Contents: CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver What firearm models does the manufacturer say CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver is compatible with? The manufacturer says that CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver is compatible with CMMG Mk4CMMG 64BCF88-CG: Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green
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