Mitchell Defense The DOC AR-15 .300 BLK 10.3in Upper Receiver Chrome-Moly Barrel Black Finish M-LOK Free-Float Handguard
$1,225.50 at OpticsPlanet
In stock Sale
American Defense Manufacturing M-LOK Rail Upper Receiver .300 Blackout 10.5in ADM Nitrite BCG Black
American Defense · Upper Receiver
No ratings yetBest price
$1,235.00at OpticsPlanet
Out of stock Sale checked Oct 23, 2026
In stock now instead
- Mitchell Defense The DOC AR-15 .300 BLK 10.3in Upper Receiver C… $1,225.50at OpticsPlanet
- Mitchell Defense The DOC AR-15 .300 BLK 10.3in Upper Receiver C… $1,225.50at OpticsPlanet
- Maxim Defense Industries MDX 508 U.R.G. AR-15 .300 AAC Blackout… $1,255.50at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $1,235.00Salechecked Oct 23, 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.
Mitchell Defense The DOC AR-15 .300 BLK 10.3in Upper Receiver Chrome-Moly Barrel Black Finish Quad Rail Handguard
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Price history
Dashed line = out of stock. Tracking since Oct 13, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $1,235.00 | $1,235.00 | $1,235.00 |
Since Oct 13, 2026.
About this part
The American Defense Manufacturing M-LOK Rail Upper Receiver .300 Blackout 10.5in ADM Nitrite BCG Black is a 10.5" 300 Blackout upper receiver from American Defense. One store lists it, OpticsPlanet at $1,235.00.
Fits and works with
- Caliber
- 300 Blackout · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 10.5" · Handguards
Specifications
- Manufacturer
- American Defense
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
From the manufacturer
American Defense Manufacturing M-Lok Rail Upper Receiver .300 Blackout 10.5in ADM Nitrite BCG Black. 5 Inch Barrel M-Lok Rail Upper Reciever lives up to its name. American Defense Manufacturing crafted this .300 AAC Blackout Rifle Upper Receiver with a brushed stainless steel finish and a M-LOK rail so that you can equip all of your favorite accessories. This American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Receiver also features a Nitrite Bolt Carrier Group (BCG) and a Raptor Charging Handle. Upgrade your firearm with this American Defense Manufacturing 300 Out 10.5 Inch Barrel M-LOK Rail Upper Receiver to get a dependable firearm for your range training and shooting needs. Specifications for American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever: Manufacturer: American Defense Manufacturing Caliber: .300 AAC Blackout Barrel Length: 10.5 in Muzzle Device: Surefire Warcomp Finish: Matte Color: Black Gun Rail: M-LOK Magazine Included: No Additional Features: ADM Nitrite BCG Included Accessories: Battle Comp Muzzle Device Features of American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever: M-LOK Rail Package Contents: American Defense Manufacturing 300 Out 10.5 Inch Barrel M-Lok Rail Upper Reciever American Defense Manufacturing UICCUBOBLK10M2MLOK: .300 Blackout 10.5 Inch Barrel M-Lok Rail Upper Reciever Contains ADM Nitrite BCG Black
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