Watchmanxr 6mm ARC 18"bbl Complete Upper Receiver Black
$999.00 at Brownells · 6 stores
In stock
Best price
$799.99at OpticsPlanet
In stock Sale checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $799.99Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $849.99checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $863.99checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Palmetto State Armory | $997.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $799.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $863.99 | $863.99 | $863.99 |
| MidwayUSA | $849.99 | $849.99 | $849.99 |
| OpticsPlanet | $799.99 | $799.99 | $799.99 |
| Palmetto State Armory | $997.99 | $997.99 | $997.99 |
Since Sep 28, 2026.
About this part
The CMMG Resolute MK4 6mm ARC Upper with 16.1" Barrel, Black is a 16.1" 6mm ARC upper receiver from CMMG. It's sold by 4 stores (3 in stock), from $799.99 to $997.99. The lowest in-stock price in the last 30 days was $799.99 at OpticsPlanet.
Fits and works with
- Caliber
- 6mm ARC · Shop matching ammo
- Bolt
- 6.5 Grendel / 6mm ARC · Bolt carrier groups
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Black
- Platform
- AR-15
- Caliber
- 6mm ARC
From the manufacturer
CMMG Resolute MK4 6mm ARC Upper with 16.1" Barrel, Black - 60B1091AB
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