CMMG Mk3 Upper Receiver Assembly .308 Armor Black
$324.95 at MidwayUSA · 2 stores
In stock
Best price
$329.99at Brownells
Out of stock checked Oct 24, 2026
In stock now instead
- CMMG Mk3 Upper Receiver Assembly .308 Armor Black $324.95at MidwayUSA
- Tacfire 16" Complete Upper Assembly .308 Win 1:10, Black $359.99at GunMag Warehouse
- Bear Creek Arsenal BC-10 .308 16in Right Side Upper Receiver He… $366.49at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $329.99checked Oct 24, 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.
Tacfire 16" Complete Upper Assembly .308 Win 1:10, Black
$359.99 at GunMag Warehouse · 8 stores
In stock
Bear Creek Arsenal BC-10 .308 16in Right Side Upper Receiver Heavy Mid-Length 1-10 5/8x24 Flash Hider Parkerized Tungsten
$366.49 at OpticsPlanet
In stock Sale
Tacfire 18" Complete Upper Assembly .308 Win 1:10, Black
$369.99 at GunMag Warehouse · 9 stores
In stock
V Seven Harbinger 308 Upper Receiver HARB UR-ALU
$392.85 at OpticsPlanet
In stock Sale
Luth-AR .308 A3 Assembled Upper Receiver w/ Charging Handle & Ejection Port Door Installed
$174.83 at OpticsPlanet · 3 stores
In stock Sale
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $329.99 | $329.99 | $329.99 |
Since Sep 28, 2026.
About this part
The Brn-10 Upper Receiver is a .308 / 7.62x51 upper receiver from Brownells. One store lists it, Brownells at $329.99.
Fits and works with
- Caliber
- .308 / 7.62x51 · Shop matching ammo
- Bolt
- AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Specifications
- Manufacturer
- Brownells
- Platform
- AR-10
- Caliber
- .308 / 7.62
From the manufacturer
The BRN-10A(R) Upper Receiver can now be purchased individually, allowing you to build out a unique AR-10A(R) clone to fit your desires. The receiver includes the proprietary BRN-10A(R) parts, such as the rear sight assembly and charging handle. Any standard SR-25/DPMS pattern bolt carrier group and barrel assembly will interface fine with the BRN-1A(R)0 upper. The receiver is machined from 7075-T6 aluminum and anodized matte black. The BRN-10A(R) Upper Receiver only fits the BRN-10A(R) Lower Receiver. It is not compatible with other 308 pattern receivers. Mfg: Brownells
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.