Moriarti AR-15 300 Blackout Diamond Cut 12in M-LOK Upper Assembly A2 Black 16in
$359.99 at OpticsPlanet
In stock Sale
Moriarti Upper Receiver with Flash Hider AR-15 .300 Blackout 10.5 inch Barrel Medium Profile Pistol Length 1x7 Twist 5/8X24 Thread M-LOK Handguard A2
No ratings yetBest price
$359.99at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
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- ABC RIFLE COMPANY AR-15 .300 AAC Blackout Pistol 10in Quadrail … $369.99at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $359.99Salechecked 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.
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In stock
Price history
Dashed line = out of stock. Tracking since Oct 15, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $359.99 | $349.99 | $359.99 |
Since Oct 15, 2026.
About this part
The Moriarti Upper Receiver with Flash Hider AR-15 .300 Blackout 10.5 inch Barrel Medium Profile Pistol Length 1x7 Twist 5/8X24 Thread M-LOK Handguard A2 is a 10.5" 300 Blackout upper receiver from Moriarti. One store lists it, OpticsPlanet at $359.99.
Fits and works with
- Caliber
- 300 Blackout · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Pistol · Handguards
- Muzzle thread
- 5/8x24 · Muzzle devices
- Barrel length
- 10.5" · Handguards
Specifications
- Manufacturer
- Moriarti
- Platform
- AR-15
- Caliber
- 300 Blackout
From the manufacturer
Moriarti Upper Receiver with Flash Hider AR-15 .300 Blackout 10.5 inch Barrel Medium Profile Pistol Length 1x7 Twist 5/8X24 Thread M-LOK Handguard A2. Just drop this pistol upper assembly on your Mil-Spec lower receiver and enjoy the outdoors. Specifications for Moriarti AR-15 10 inch .300 Blackout Upper Receiver with Flash Hider Assembly: Manufacturer: Moriarti Caliber: .300 AAC Blackout Barrel Length: 10.5 in Barrel Profile: Medium Gas System Length: Pistol Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 5/8x24 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Hardcoat Anodized Color: Black/OD Green Gun Model: AR-15 Fabric/Material: 7075-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 10 in Gun Rail: M-LOK Gun Make: AR Platform Barrel Material: 4150 CMV Steel Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Mount Type: M-LOK Package Contents: Moriarti AR-15 10 inch .300 Blackout Upper Receiver with Flash Hider Assembly What firearm models does the manufacturer say Moriarti AR-15 10 inch .300 Blackout Upper Receiver with Flash Hider Assembly is compatible with? The manufacturer says that Moriarti AR-15 10 inch .300 Blackout Upper Receiver with Flash Hider Assembly is compatible with AR-15Moriarti MAR-300-10-BLK-ODG-A2: Upper Receiver with Flash Hider AR-15 .300 Blackout 10.5 inch Barrel Medium Profile Pistol Length 1x7 Twist 5/8X24 Thread M-LOK Handguard A2 Flash Hider Hardcoat Anodized Black/ Od Green
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