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

Micro ARP Suppressor Ready

5" 5.56 NATO Micro ARP Suppressor Ready Upper Assembly – 4" M-LOK, A2 Flash Hider

The Moriarti 5" 5.56 NATO Micro ARP Suppressor Ready Upper Assembly is part of Moriarti's Micro ARP and Suppressor Ready Series, featuring a compact 5-inch barrel, 4-inch free-floating M-LOK handguard, and A2 flash hider.

This upper assembly features a 5" 4150 Chrome Moly Vanadium (CMV) steel barrel with a black nitride finish and 1:5 twist rate. The micro-length gas system incorporates a .750" low-profile gas block.

The upper receiver is manufactured from forged 7075-T6 aluminum, finished in black hardcoat anodizing, and features an A3 flat-top Picatinny rail, forward assist, and dust cover.

The 4" slim free-floating M-LOK handguard provides a compact profile with accessory mounting slots. An A2 flash hider is installed on the barrel's 1/2×28 muzzle threads.

As part of Moriarti's Suppressor Ready Series, this configuration provides a threaded muzzle platform. The included A2 flash hider is not itself a suppressor, and suppressor compatibility depends on the specific suppressor, mounting system, and manufacturer requirements.

Key Features

• Series: Micro ARP / Suppressor Ready Series

• Caliber: 5.56 NATO

• Barrel: 5" 4150 CMV steel

• Barrel Finish: Black nitride

• Twist Rate: 1:5

• Gas System: Micro-length

• Gas Block: .750" low-profile

• Upper Receiver: Forged 7075-T6 aluminum

• Receiver Finish: Black hardcoat anodized

• Receiver Configuration: A3 flat-top with forward assist and dust cover

• Handguard: 4" slim free-floating M-LOK

• Muzzle Threads: 1/2×28

• Muzzle Device: A2 flash hider

• Bolt Carrier Group: Optional, sold separately

• Charging Handle: Optional, sold separately

Specifications

Package Includes

• One assembled Moriarti 5" 5.56 NATO Micro ARP Suppressor Ready upper assembly

• Installed 5" black nitride 4150 CMV barrel

• Forged 7075-T6 upper receiver

• Installed micro-length gas system

• 4" slim M-LOK handguard

• Installed A2 flash hider

• Forward assist and dust cover

Not Included: Bolt carrier group, charging handle, lower receiver, magazine, or suppressor unless otherwise specified through available selections.

Frequently Asked Questions

What series does this upper assembly belong to?

This model belongs to Moriarti's Micro ARP lineup and is designated as part of the Suppressor Ready Series.

Does the upper include a forged receiver?

Yes. The upper receiver is manufactured from forged 7075-T6 aluminum with a black hardcoat anodized finish.

Does the upper include a suppressor?

No. The assembly includes an A2 flash hider installed on 1/2×28 muzzle threads. A suppressor and any required compatible mounting hardware are not included.

Are the bolt carrier group and charging handle included?

No. Both components are available separately as optional selections.

Product Image Notice

Images may not be the exact representation of the product.

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.