11.5" 5.56 NATO AR-15 Classic Upper Assembly – 10" M-LOK, A2 Flash Hider

11.5" 5.56 Upper: Specs & Features

The Moriarti Classic Series 11.5" 5.56 NATO AR-15 Upper Assembly features an M4-profile black nitride barrel, 10" free-floating M-LOK handguard, and traditional A2 flash hider.

The barrel is chambered in 5.56 NATO with a 1:7 right-hand twist, 1/2×28 muzzle threads, and carbine-length gas system. The assembly uses a .750 low-profile steel gas block and carbine-length gas tube.

The A3 flat-top upper receiver is manufactured from forged 7075-T6 aluminum and finished in black hardcoat anodizing. It includes an installed forward assist, dust cover, and M4 feed ramps.

Key Features

• 11.5" M4-Profile Barrel: Black nitride finish.

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

• 1:7 RH Twist: Right-hand rifling.

• Carbine-Length Gas System: .750 low-profile steel gas block.

• 10" M-LOK Handguard: Free-floating aluminum construction with black hardcoat anodizing.

• A2 Flash Hider: Standard configuration with 1/2×28 muzzle threads.

• Forged A3 Upper Receiver: 7075-T6 aluminum, black hardcoat anodized.

• Forward Assist and Dust Cover: Installed.

• M4 Feed Ramps: Included.

Specifications

Package Includes

• Assembled A3 upper receiver

• 11.5" black nitride M4-profile barrel

• 10" black M-LOK handguard

• Carbine-length gas system with .750 steel gas block

• A2 flash hider

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

Frequently Asked Questions

What barrel is used in this Classic Series upper?

An 11.5" black nitride M4-profile barrel chambered in 5.56 NATO with a 1:7 twist.

What gas system does this upper use?

A carbine-length gas system with a .750 low-profile steel gas block.

What handguard is included?

A 10" black free-floating aluminum M-LOK handguard.

Does this upper include an A2 flash hider?

Yes. The configuration includes an A2 flash hider with 1/2×28 barrel threads.

Are the BCG and charging handle included?

No. Both are available separately.

Product Image Notice

Images may not be the exact representation of the product.

FAQ

Will this upper fit my AR-15 lower?

Yes. It fits any standard mil-spec AR-15 lower receiver and uses a standard 5.56 bolt carrier group and STANAG/AR-15 magazines.

Can I shoot both 5.56 NATO and .223 Remington?

Yes. A 5.56 NATO or .223 Wylde chamber safely fires both 5.56 NATO and .223 Remington ammunition.

Is a bolt carrier group included?

Yes. This upper ships with a bolt carrier group, so it is ready to install on a compatible AR-15 lower.

What twist rate does it use?

A 1:7 twist, the mil-spec rate that stabilizes 55 gr through heavy 77 gr loads.

Related: 5.56 NATO & .223 Wylde AR-15 uppers