Moriarti AR-15 16" 5.56/.223 M4 Carbine Upper with 15" M-LOK Handguard and Claw Brake

5.56 NATO &.223 Wylde

AR-15 5.56/.223 16" M4 Carbine Upper with 15" M-LOK Handguard and Claw Muzzle Brake – 1:7 Twist, Carbine-Length, Moriarti Arms

The AR-15 16" M4 Carbine Upper Assembly from Moriarti Arms delivers dependable performance, modular flexibility, and an aggressive Claw-style muzzle device for enhanced recoil mitigation. Chambered in 5.56 NATO, it’s also fully compatible with .223 Remington.

Built around a 16" M4 contour barrel constructed from 4150V chrome moly steel, this upper features a 1:7 twist rate for ideal stabilization of heavier rounds. The carbine-length gas system offers balanced cycling, while the .750 gas block ensures consistent operation.

At the front, a Claw multi-prong muzzle brake not only looks great but effectively reduces muzzle rise and flash signature. The 15" slim-profile M-LOK handguard provides ample real estate for accessories while maintaining lightweight maneuverability.

The upper receiver is forged from 7075-T6 aluminum, hardcoat anodized to military specs, and includes M4 feedramps, forward assist, and dust cover pre-installed.

Key Features:

• Caliber: 5.56 NATO / .223 Remington

• Barrel Length: 16"

• Barrel Material: 4150V Chrome Moly Steel, Heat Treated

• Profile: M4 Contour (Government Profile)

• Twist Rate: 1:7 RH

• Thread Pitch: 1/2x28

• Gas System: Carbine-Length

• Gas Block Diameter: .750

• Muzzle Device: Claw Multi-Prong Muzzle Brake

• Handguard: 15" Slim M-LOK Free Float

• Receiver: A3 Flat Top, 7075-T6 Forged Aluminum, Black Hardcoat Anodized

• Feedramps: M4

• Includes: Fully assembled upper

• Excludes: BCG and Charging Handle (available separately)

Pair it perfectly with our Moriarti AR-15 Lower Receivers for a complete top-end solution.