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OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle MAR-10-300-PENTA Caliber: .300 AAC Blackout, Barrel Length: 10.5 in, 23% Off and Blazin' Deal w/ Free S&H

OP Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol, Medium, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey MAR-10-300-PENTA
OpticsPlanet Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol Length, Medium Profile, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey, MAR-10-300-PENTA
OP Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol, Medium, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey MAR-10-300-PENTA
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OP Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol, Medium, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey MAR-10-300-PENTA
OpticsPlanet Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol Length, Medium Profile, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey, MAR-10-300-PENTA
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OpticsPlanet Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol Length, Medium Profile, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey, MAR-10-300-PENTA

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Questions & Answers
Customer Reviews
Most Recent Reviews
Read first by W, Verified Owner, December 4, 2025
The receiver has dents on it, some of the screws are loose, and has metal shavings in it
Most Recent Reviews
this is Awesome by oneshot, Verified Owner, November 9, 2025
I used really good parts on it, but the upper itself is actually very accurate. I was threading same shot at 50 yards multiple times. extremely impressed for the price point. I was just hoping to build a cheap truck then ended up sinking 1200 in tota...
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Read All 2 Reviews

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Caliber: .300 AAC Blackout Barrel Length: 10.5 inBarrel Profile: Medium Gas System Length: Pistol Length Barrel Twist Rate: 1-7 Threads per Inch: 5/8x24 Handguard Type: Free-Float Muzzle Device: Slanted Muzzle Brake Color: Sniper Gray Handguard Length: 10 in

Code: 5MY-URC-SPGY-MAR-10-300-PENTA

MPN: MAR-10-300-PENTA

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List: $399.95Save 23%
$306.84

Product Info for OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle

The OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle was developed to be the best item for anyone in need of a high quality selection..image

Developed by using some of the very most durable and long lasting components in existence, these AR15 Upper Receivers from Moriarti offers you something that will give you numerous years of reliability.

Moriarti has been making high-quality merchandise for a very long time, and the OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle is their very own way of revealing just how much they are concerned.

At OpticsPlanet, we ensure that it is our obligation to obtain the most suitable solution for all of your preferences, and exhibiting the OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle is a thing that we are pleased to offer.

WARNING: California`s Proposition 65

Specifications for OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle:

Manufacturer: Moriarti
Caliber: .300 AAC Blackout
Barrel Length: 10.5 in
Barrel Profile: Medium
Gas System Length: Pistol Length
Barrel Twist Rate: 1-7
Threads per Inch: 5/8x24
Handguard Type: Free-Float
Muzzle Device: Slanted Muzzle Brake
Color: Sniper Gray
Handguard Length: 10 in
Gun Rail: M-LOK
Gun Model: AR-15
Magazine Included: No

Package Contents:

  • OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle

What firearm models does the manufacturer say OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle is compatible with?

The manufacturer suggests that OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle is compatible with AR-15

OpticsPlanet Exclusive Moriarti AR-15 10.5in 300 Blackout Upper Receiver, Slanted Muzzle Orderable Models

List of Orderable Models

  • OP Exclusive Moriarti AR-15 Upper Receiver, 300 Blackout, 10.5in, Pistol, Medium, M-LOK, 1-7 Twist, 5/8x24 Thread, Diamond Cut Free-Float Handguard, Slanted Muzzle Brake, Sniper Grey MAR-10-300-PENTA , MPN: MAR-10-300-PENTA , Code: 5MY-URC-SPGY-MAR-10-300-PENTA
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