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13.9" 5.56 NATO AR-15 Upper Assembly – Pencil Barrel | 7" Fake Suppressor

Brand:Moriarti Armaments
Product Code:MA-15-556-139-7-CAN
Availability:In Stock
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  • $289.95

  • $399.95

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AR-15 Line

The Moriarti 13.9" 5.56 NATO AR-15 Upper Assembly combines a lightweight pencil-profile barrel, a 12" slim M-LOK handguard, and a 7" faux suppressor in a distinctive black configuration.

The 13.9" barrel is manufactured from 41V50 chrome moly vanadium steel and features a nitride finish, 1:7 right-hand twist, and carbine-length gas system. Its pencil profile incorporates a .625" gas-block journal.

The assembly features a forged 7075-T6 aluminum A3 flat-top upper receiver with black hardcoat anodizing, an installed forward assist, dust cover, and M4 feed ramps.

A black 12" free-float M-LOK handguard surrounds the barrel, while the Moriarti 7" fake suppressor provides the assembly's extended muzzle appearance without functioning as a sound suppressor.

Key Features

  • 13.9" Pencil-Profile Barrel: 41V50 CMV steel with a nitride finish.

  • 5.56 NATO Chamber: Compatible with .223 Remington ammunition.

  • 1:7 RH Twist: Right-hand barrel rifling.

  • Carbine-Length Gas System: Equipped with a .625 low-profile steel gas block.

  • 12" Slim M-LOK Handguard: Free-float aluminum construction with black hardcoat anodizing.

  • Moriarti 7" Fake Suppressor: Black muzzle accessory with 1/2×28 threads; provides no sound suppression.

  • Forged A3 Upper Receiver: 7075-T6 aluminum with black hardcoat anodizing.

  • Forward Assist and Dust Cover: Installed.

  • M4 Feed Ramps: Included.

Specifications

SpecificationDetails
ManufacturerMoriarti Armaments
PlatformAR-15
Product TypeComplete Upper Assembly
Chamber5.56 NATO
Compatible Ammunition.223 Remington
Barrel Length13.9"
Barrel ProfilePencil
Barrel Material41V50 Chrome Moly Vanadium
Barrel FinishNitride
Barrel Twist1:7 RH
Barrel Threads1/2×28
Gas SystemCarbine Length
Gas Block.625 Low-Profile Steel
Handguard12" Slim M-LOK
Handguard TypeFree-Float
Handguard MaterialAluminum
Handguard FinishBlack Hardcoat Anodized
Upper ReceiverForged 7075-T6 Aluminum
Receiver TypeA3 Flat-Top
Receiver FinishBlack Hardcoat Anodized
Feed RampsM4
Forward AssistInstalled
Dust CoverInstalled
Muzzle AccessoryMoriarti 7" Fake Suppressor
Muzzle Threads1/2×28
Sound SuppressionNone
Bolt Carrier GroupNot Included
Charging HandleNot Included
SightsNot Included
MagazineNot Included
Country of ManufactureUSA

Package Includes

  • Assembled 13.9" 5.56 NATO upper

  • 41V50 CMV nitride pencil-profile barrel

  • 12" black slim M-LOK handguard

  • Carbine-length gas system with .625 steel gas block

  • Moriarti 7" fake suppressor

  • Forged A3 upper receiver with forward assist and dust cover

Bolt carrier group, charging handle, lower receiver, sights, and magazine are not included.

Frequently Asked Questions

What barrel profile does this upper use?

The assembly features a 13.9" pencil-profile barrel with a .625" gas-block journal.

What is the barrel finish?

The barrel features a nitride treatment.

What handguard is included?

A 12" black slim free-float M-LOK handguard.

Does the 7" fake suppressor reduce sound?

No. It is a non-suppressing muzzle accessory.

What gas system does this upper use?

A carbine-length gas system with a .625 low-profile steel gas block.

Are the bolt carrier group and charging handle included?

No. Both components are excluded from the standard assembly.

Product Image Notice

Images may not be the exact representation of the product.

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