AR-15 .350 Legend 16" Tactical Upper Assembly – 12" M-LOK Rail

.350 Legend Upper: Specs & Features

Upgrade your AR-15 with the .350 Legend 16" Tactical Upper Assembly featuring a 12" M-Lok free float rail. Designed for those who demand superior performance, the .350 Legend delivers enhanced velocity and energy, without needing a specialty bolt. Whether you're a hunter, tactical shooter, or looking to take your AR-15 to the next level, this upper assembly offers the perfect balance of power and precision for your next adventure.

Key Features:

• Barrel Length: 16" of pure performance designed for .350 Legend ammunition.
• Barrel Profile: M4 Contour for improved handling and balance.
• Material: 4150 CMV Steel provides excellent durability and resistance to wear, ensuring long-lasting performance.
• Barrel Finish: Parkerized finish for corrosion resistance and added durability in tough conditions.
• Twist Rate: 1:16 for optimal bullet stabilization and performance with .350 Legend rounds.
• Muzzle Thread: 5/8x24 for compatibility with most muzzle devices, such as flash hiders and compensators.
• Gas System: Carbine-length gas system for smooth cycling and performance.
• Feed Ramp: 300 Blackout compatibility for seamless feeding and cycling.
• Gas Block: Steel Low Profile for reliability and durability under pressure.
• Muzzle Device: Includes A2 Flash Hider for improved recoil control and minimized muzzle flash.
• Receiver Material: Constructed from 7075-T6 aluminum forging, offering a lightweight yet durable foundation for your upper assembly.
• Handguard Type: 12" M-Lok Free Float Rail to customize your rifle setup and provide a secure mounting surface for accessories like lights, lasers, and vertical grips.

Detailed Breakdown:

• Barrel: 16" 4150 CMV parkerized barrel chambered in .350 Legend with a 1:16" twist to ensure tight groupings and reliable performance, even at longer ranges. The barrel is designed with a Carbine-length gas system and a .750 low profile steel gas block, offering consistent cycling and less recoil.
• Upper Receiver: A precision-built A3 Flat Top Upper Receiver made from 7075-T6 aluminum and black hardcoat anodized to military specifications. Includes a blue forward assist to match the rail, with an ejection port cover pre-installed.
• Handguard: The 12" M-Lok Free Float Rail is slim, lightweight, and offers a solid attachment point for accessories, ideal for tactical shooters looking for versatility and customization.

• Assembly Ready: This upper assembly comes fully assembled and ready to mount to your AR-15 lower receiver. It does not include BCG or charging handle (sold separately).

  Additional Notes:

• This upper assembly is perfect for shooters who want the enhanced velocity and power of the .350 Legend without needing a specialty bolt.
• Please note: the M-Lok rail design may vary based on stock availability, but all designs maintain top-tier quality.
• Assembly does not include BCG or Charging Handle.

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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