Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver Medium Pistol Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride Black
No ratings yetBest price
$359.99at OpticsPlanet
In stock Sale checked Nov 10, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $359.99Salechecked Nov 10, 2026 | In 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.
Price history
Lowest in-stock price in the last 30 days: $329.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 12, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $359.99 | $329.99 | $359.99 |
Since Oct 12, 2026.
About this part
The Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver Medium Pistol Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride Black is a 6" 300 Blackout upper receiver from Moriarti. One store lists it, OpticsPlanet at $359.99. The lowest in-stock price in the last 30 days was $329.99 at OpticsPlanet.
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
- 6" · Handguards
Specifications
- Manufacturer
- Moriarti
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
From the manufacturer
Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver Medium Pistol Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride Black. Perfect for tactical sport shooting or hunting enthusiasts. Specifications for Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver: Manufacturer: Moriarti Caliber: .300 AAC Blackout Barrel Length: 6 in Barrel Profile: Medium Gas System Length: Pistol Length Barrel Twist Rate: 1-7 Muzzle Device: A2 Flash Hider Finish: Nitride Color: Black Gun Model: AR-15 Fabric/Material: 4150 Chrome Moly Vanadium Gas Block Journal Size-Diameter: .750 in Handguard Length: 5.5 in Gun Rail: M-LOK Gun Make: AR Platform Weight: 56 oz Magazine Included: No Threads per Inch: 5/8x24 Features of Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver Chambered in 300 Blackout offering superior ballistic performance. 1:7 RH twist ensures stable consistent shots with a variety of bullet weights. 5/8x24 thread for versatile muzzle device compatibility. .750 diameter under the gas block and finished with an A2 flash hider in nitride and a crush washer. Equipped with M4 feedramps for reliable feeding High-Quality Upper Receiver: A3 flat top upper receiver forged from top-tier 7075-T6 aluminum for strength and precision. Black hardcoat anodized for enhanced corrosion resistance. Includes forward assist and dust cover pre-installed. M4 feedramps ensure optimal reliability Efficient Gas System: 750 low-profile gas block made from durable steel with a black hardcoat anodized finish. Designed for pistol-length gas system ensuring smooth and reliable cycling for your 300 Blackout platform Lightweight Slim MLOK Rail: 5.5 in MLOK hybrid slim profile handguard crafted from aircraft-quality aluminum and black hardcoat anodized for superior durability and weight savings. Provides a modular platform for your accessories and enhances ergonomics Compatibility and Versatility: Please note BCG (bolt carrier group) and charging handle are not included Package Contents: Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver What firearm models does the manufacturer say Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver is compatible with? The manufacturer suggests that Moriarti AR-15 .300 AAC Blackout 6 inch Upper Receiver is compatible with AR-15Moriarti MAR-300-6-A2: AR-15 .300 AAC Blackout 6 inch Upper Receiver Medium Pistol Length 1-7 Twist 5/8x24 A2 Flash Hider Nitride Black
Similar upper receivers
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 Stripped AR-15 .300 Blackout 10.5 inch Barrel Medium Profile Pistol Length 1x7 Twist 5/8X24 Thread M-LOK Handguard Mini Shroud
$369.99 at OpticsPlanet
In stock Sale
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Pistol 10in Quadrail Handguard Complete Upper Receiver w/BCG And Charging Handle Red
$379.99 at OpticsPlanet
In stock Sale
Andro Corp Industries AR-15 Complete M-LOK Upper Receiver with Flash Hider Assembly .300BLK 18in 10in Barrel Medium Pistol Length 1-7 Twist 5/8x24
$386.99 at MidwayUSA · 4 stores
In stock
Dark Storm Industries DS-15 AR-15 .300 AAC Blackout 16 inch Upper Receiver Pistol Length 1-8 Twist Non Threaded FDE
$319.49 at OpticsPlanet
In stock Sale
Andro Corp Industries AR-15 Complete M-LOK Upper Receiver with Flash Hider Assembly .300BLK 24.75in 16in Barrel Medium Pistol Length 1-7 Twist 5/8x24
$316.91 at Kentucky Gun Co · 4 stores
In stock
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.