Micro ARP AR-15 5.56 NATO 5" Complete Upper Assembly - Suppressor Ready

5.56 NATO &.223 Wylde

Micro ARP AR-15 5.56 NATO 5" Complete Upper Assembly | Suppressor Ready | Moriarti Armaments

The MORIARTI ARP-15 5.56 NATO 5" Pistol Upper Assembly is precision-engineered for superior performance in a compact AR-15 pistol build. Featuring a 5-inch 4150 Chrome Moly Vanadium barrel with a nitride finish and a 1:5 twist rate, this upper is ready for your Suppressor and ensures exceptional durability and accuracy. The A3 flat top upper receiver comes equipped with a forward assist and dust cover for enhanced functionality. Paired with a 4" MLOK handguard for versatility and modularity, this assembly is ready to take your AR build to the next level.

Perfect for home defense or tactical use, this upper does not include a bolt carrier group (BCG) or charging handle, allowing you to customize your build to your preference.

Key Features:

• Barrel Length: 5 inches, 4150 Chrome Moly Vanadium, nitride finish for longevity
• Twist Rate: 1:5 for improved stabilization of heavier projectiles
• Muzzle Thread: 1/2x28 TPI, compatible with a wide range of muzzle devices
• Muzzle Device: A2 flash hider for reduced muzzle flash
• Upper Receiver: A3 flat top with forward assist and dust cover, made from billet aluminum and hardcoat anodized for durability
• Gas System: Micro gas tube with a 0.750 gas block for reliable cycling
• Handguard: 4" slim MLOK free-float rail for accessory mounting
• Bolt Carrier Group (BCG): Not included
• Charging Handle: Not included

Package Includes:

• MORIARTI AR-15 5.56 NATO 5" Pistol Upper Assembly with 4" MLOK and A2 muzzle device
• Images may not be the exact representation of the product
• Upper does not include BCG and CH. Can be purchased separately.

Shop Related Categories

• Micro ARP Collection
• AR-15 Bolt Carrier Groups
• AR-15 Charging Handles
• Suppressor Accessories

Can I install a 5.56 upper on any AR-15 lower?

Most 5.56 NATO complete uppers are designed to fit virtually any mil-spec AR-15 lower receivers. Before installation, verify compatibility with your lower receiver and ensure all components meet the manufacturer's specifications for safe and reliable operation.