MORIARTI AR-300 Blackout 16" Diamond Cut 12" M-LOK Upper Assembly – Black

Elevate your AR platform with the MORIARTI AR-15 300 Blackout 16" Diamond Cut Upper Assembly, engineered for precision, durability, and tactical aesthetics. Designed for enthusiasts who demand function and style, this complete upper is built on a 7075-T6 forged aluminum receiver and equipped with a 16” 4150 Chrome Moly Steel barrel with a 1:7 twist, optimized for stabilizing heavier subsonic and supersonic rounds.

The 12” M-LOK Diamond Cut free-float handguard ensures modular accessory mounting and enhanced barrel cooling. Paired with a pistol-length gas system, this setup delivers reliable cycling, especially when running suppressed.

This upper features a black anodized triport muzzle device for reduced recoil and a sleek, aggressive finish. All components are Mil-Spec, assembled and inspected in the USA.

Specifications:

• Caliber: 300 Blackout

• Barrel Length: 16"

• Barrel Material: 4150 Chrome Moly Steel

• Barrel Twist: 1:7

• Thread Pitch: 5/8x24

• Gas System: Pistol-Length

• Gas Block Journal: .750"

• Muzzle Device: Black Anodized Triport

• Receiver Material: 7075-T6 Forged Aluminum

• Finish: Hard Coat Anodized

• Color: Black

• Handguard: 12" Free-Float M-LOK, Diamond Cut Design

• Total Length: 27.5"

• Platform: AR-15

Package Includes:

• Complete upper receiver

• 16" 300 Blackout barrel

• Diamond Cut 12" M-LOK free-float handguard

• Triport muzzle brake

• Pistol-length gas system

• Forward assist and dust cover (pre-installed)