AR-74 7.62x39 5" Micro Pistol Upper Assembly – Moriarti Arms

Micro Mini

AR-74 7.62x39 5" Micro Pistol Upper Assembly / Suppressor Ready – Moriarti Arms

The MORIARTI AR-74 7.62x39 5" Micro Pistol Upper Assembly delivers compact power and versatility for any AR pistol build chambered in 7.62x39. Precision-machined and suppressor-ready, this upper features a 5-inch 4150 Chrome Moly Vanadium barrel with a black nitride finish and a 1:10 twist, making it ideal for stabilizing both standard and heavier projectiles.

This upper is built on a billet A3 flat top receiver with forward assist and dust cover, offering enhanced durability and function. The slim 4-inch MLOK handguard provides a lightweight, free-floating rail system for mounting accessories. A standard A2 flash hider is pre-installed to help reduce muzzle flash.

Note: This upper does not include a bolt carrier group (BCG) or charging handle, giving you the flexibility to complete your build to spec.

Key Features

• Caliber: 7.62x39

• Barrel Length: 5"

• Barrel Material: 4150 Chrome Moly Vanadium, Nitride Finish

• Twist Rate: 1:10

• Muzzle Thread: 5/8x24 TPI

• Muzzle Device: A2 Flash Hider

• Upper Receiver: A3 Flat Top, Billet Aluminum, Hardcoat Anodized

• Gas System: Micro Length

• Gas Block Diameter: 0.750

• Handguard: 4" Slim Free-Float MLOK Rail

• Bolt Carrier Group: Not Included

• Charging Handle: Not Included

• Made in the USA

Suggested Accessories

• 7.62x39 Magazines