Cobalt Kinetics CK-Pro 5.56x45mm NATO 14.5in Complete Upper Receiver Black Cerakote
$1,204.35 at Ammunition Depot · 3 stores
In stock
Best price
$1,199.00at Brownells
Out of stock checked Oct 23, 2026
In stock now instead
- Cobalt Kinetics CK-Pro 5.56x45mm NATO 14.5in Complete Upper Rec… $1,204.35at Ammunition Depot
- Cobalt Kinetics CK-Pro Built Upper Receiver Group 11.5in Barrel… $1,204.35at OpticsPlanet
- Monolithic M4 Le6943 Upper Group 11.5in With BCG And Sights $1,184.50at Kentucky Gun Co
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $1,199.00checked Oct 23, 2026 | Out of stock | Buy at Brownells |
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.
Cobalt Kinetics CK-Pro Built Upper Receiver Group 11.5in Barrel 5.56x45mm NATO Black
$1,204.35 at OpticsPlanet · 2 stores
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Monolithic M4 Le6943 Upper Group 11.5in With BCG And Sights
$1,184.50 at Kentucky Gun Co · 5 stores
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Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver Cold Hammer Forged Chrome-Lined Barrel Flat Dark Earth Finish M-LOK Free-Float Handguard
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Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $1,199.00 | $1,199.00 | $1,199.00 |
Since Sep 28, 2026.
About this part
The Mk1 Patrol 14.5 Upper Receiver 5.56mm Black is a 5.56 / .223 upper receiver from Griffin Armament. One store lists it, Brownells at $1,199.00.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- Griffin Armament
- Color
- Black
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Griffin Armament's MK1 Upper offers premium features and reliability to each user and allows end users to configure their upper to fit their needs. Standard and available features: The Griffin HEDP Barrels provide High Endurance Dual Purpose functionality- offering high durability and precision accuracy. Nitrided 416R stainless steel provides the highest possible hardness and longest throat life available with match grade bore dimensions and bore finish. HEDP barrel bores are hand lapped, ensuring batch to batch consistency and accuracy. TRUE-BORE concentric suppressor grade threads provide an optimized thread interface for your silencer regardless of brand or model. M4 feed ramps a Mfg: Griffin Armament
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