AR-15 .350 Legend 16" Stainless Steel Fluted Upper Assembly – 15" M-LOK, Carbine Gas

.350 Legend Upper: Specs & Features

Take your AR-15 to the next level with the Moriarti Armaments .350 Legend 16" Stainless Steel Fluted Upper Assembly. This high-quality upper assembly is chambered in .350 Legend, designed for optimal performance with a heavy barrel profile and built to handle tough conditions. Featuring a 416R stainless steel barrel with a 1:16 twist rate, this upper provides exceptional precision and energy, ideal for hunting or tactical scenarios.

The barrel comes fluted for improved heat dissipation and weight reduction. Depending on stock availability, the flute pattern may vary between straight or spiral, offering an aesthetic as well as functional enhancement. The upper also comes with a carbine-length gas system, MLok handguard, and is finished in sleek black. The upper is compatible with AR-15 lower receivers but does not include the BCG (Bolt Carrier Group) or Charging Handle, allowing for customization.

Key Features:

• Caliber: .350 Legend for powerful hunting or tactical use
• Barrel Length: 16" for optimal range and performance
• Barrel Material: 416R stainless steel for corrosion resistance and strength
• Barrel Profile: Heavy barrel for better precision and durability
• Barrel Twist Rate: 1:16 for perfect stabilization of the .350 Legend projectile
• Barrel Finish: Stainless steel for long-lasting performance
• Gas System: Carbine-length for reliable cycling
• Gas Block System: .750 diameter, low profile steel gas block
• Muzzle Thread: 5/8x24 for compatibility with standard muzzle devices
• Handguard: 15" free float Mlok rail for versatile accessory mounting
• Color: Black anodized finish for a rugged, tactical look
• Charging Style: Rear charging for convenient operation
• Dimpled: Yes, for precise gas block placement
• Platform: AR-15
• BCG/CH: Not included, giving you flexibility to customize your build

Specifications:

• Caliber: .350 Legend
• Barrel Length: 16"
• Barrel Steel: 416R Stainless Steel
• Barrel Twist: 1:16
• Barrel Profile: Heavy
• Muzzle Thread Pitch: 5/8x24
• Gas System: Carbine Length
• Gas Block System: .750 diameter, steel low-profile
• Muzzle Device: Not included (compatible with your choice of 5/8x24 device)
• Gas Hole Diameter: .1015 for optimal gas flow
• Handguard: 15" Mlok free float
• Charging Style: Rear Charging
• Dimpled Barrel: Yes, for secure gas block positioning
• Color: Black
• BCG/CH: Not Included
• Platform: AR-15

Why Choose This Upper Assembly?

The Moriarti Armaments .350 Legend 16" Stainless Steel Fluted Upper Assembly is the perfect upgrade for your AR-15, providing superior accuracy, durability, and performance. Whether you're a hunter seeking a straight-wall cartridge for precision or a tactical shooter needing reliable power, this upper assembly delivers. The fluted barrel not only looks impressive but also improves cooling and reduces weight, making this upper easy to handle.

The MLok handguard offers a versatile platform for adding accessories like sights, lasers, and grips. The carbine-length gas system ensures consistent operation under a variety of conditions, and the 416R stainless steel construction offers longevity and resistance to corrosion, ensuring your rifle performs for years to come.

This upper assembly is custom-designed for .350 Legend, and its 1:16 twist rate ensures your projectiles fly true, providing consistent accuracy and performance, whether you're shooting at the range or in the field.

FAQ

Will this upper fit my AR-15 lower?

Yes. It fits a standard mil-spec AR-15 lower receiver.

What bolt and magazines do I need?

.350 Legend runs on a standard 5.56 AR-15 bolt carrier group, so no specialty bolt is needed. Dedicated .350 Legend magazines are recommended for reliable feeding.

Is .350 Legend legal for deer hunting?

It is a straight-wall cartridge accepted in many straight-wall deer hunting states. Always check your state's current regulations.

What twist rate does it use?

A 1:16 twist, the standard rate for .350 Legend.

Related: .350 Legend uppers · all AR-15 upper assemblies

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