Moriarti AR-15 .300 Blackout 16" Upper Assembly – Non-Threaded Barrel, 15" M-LOK

16" Upper: Specs & Features

The Moriarti AR-15 .300 AAC Blackout 16" Upper Assembly combines a streamlined, non-threaded barrel configuration with a durable 4150V Chrome Moly Vanadium barrel and a 15-inch free-floating M-LOK handguard.

Chambered in .300 AAC Blackout, this upper features a 16-inch medium-profile barrel with a black nitride finish, 1:8 twist rate, and non-threaded target crown. The barrel weighs approximately 30 ounces and incorporates M4 feed ramps.

The pistol-length gas system features a matching pistol-length gas tube and .750-inch gas block journal.

The upper assembly features a forged 7075-T6 aluminum A3 flat-top receiver with a black MIL-SPEC hardcoat anodized finish. A distinctive red forward assist provides a contrasting accent, while the installed dust cover protects the receiver opening.

A 15-inch slim, free-floating black M-LOK handguard provides a continuous top Picatinny rail and versatile mounting positions for compatible accessories.

The non-threaded target-crown barrel eliminates the need for a muzzle device while maintaining a clean, streamlined profile.

Designed for compatible mil-spec AR-15-pattern lower receivers, this .300 Blackout upper offers a versatile sporting configuration with durable components and distinctive styling.

Bolt carrier group and charging handle are not included and are available separately.

Key Features

• 16" medium-profile 4150V Chrome Moly Vanadium barrel

• .300 AAC Blackout chambering

• Black nitride barrel finish

• 1:8 twist rate

• Approximately 30 oz barrel weight

• Non-threaded target crown

• No muzzle device

• M4 feed ramps

• Pistol-length gas system

• Pistol-length gas tube

• .750" gas block journal

• 15" slim free-floating M-LOK handguard

• Black anodized handguard finish

• Forged 7075-T6 A3 flat-top upper receiver

• Black MIL-SPEC hardcoat anodized receiver finish

• Red forward assist

• Installed dust cover

• Continuous top Picatinny rail

• Bolt carrier group and charging handle available separately

Specifications

Package Includes

• Assembled Moriarti AR-15 .300 Blackout 16" upper receiver assembly

• Installed 16" 4150V black nitride medium-profile barrel

• Non-threaded target crown

• Forged 7075-T6 A3 flat-top upper receiver

• Installed red forward assist and dust cover

• Installed 15" black slim M-LOK handguard

• Installed pistol-length gas system and matching gas tube

Not Included: Bolt carrier group, charging handle, lower receiver, magazine, optics, and ammunition.

FAQ

What barrel does this .300 Blackout upper feature?

A 16-inch medium-profile 4150V Chrome Moly Vanadium barrel with a black nitride finish, 1:8 twist rate, and non-threaded target crown.

Is the barrel threaded for a muzzle device?

No. The barrel features a non-threaded target crown and does not accept a conventional threaded muzzle device.

What gas system does this upper use?

A pistol-length gas system with a pistol-length gas tube and .750-inch gas block journal.

Does this upper include a bolt carrier group and charging handle?

No. Both components are sold separately.

Will this upper fit a standard AR-15 lower receiver?

It is designed for compatible mil-spec AR-15-pattern lower receivers.

What bolt carrier group and magazines are compatible?

The .300 Blackout cartridge uses a standard AR-15 5.56-pattern bolt carrier group. Compatible .300 Blackout magazines are recommended.

What handguard is installed?

A 15-inch slim free-floating M-LOK handguard with a black anodized finish and continuous top Picatinny rail.

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