AR-15 5.56/.223 16" M4 Magpul MOE Flat Top Upper Assembly – FDE

16" 5.56 Upper: Specs & Features

Upgrade your AR-15 build with the 5.56/.223 16" M4 Magpul MOE Flat Top Upper Assembly in FDE. Designed for precision and performance, this M4 upper assembly is chambered in 5.56 NATO / .223 Wylde, allowing you to shoot both 5.56 NATO and .223 Remington cartridges with ease. The carbine length gas system ensures smooth cycling, while the nitride-coated barrel provides durability and longevity for countless rounds.

Key Features:

• Chamber & Caliber:

  • 5.56 NATO / .223 Wylde chambered for optimal versatility, compatible with both 5.56 NATO and .223 Remington ammunition

• Barrel:

  • 16" M4 Barrel made from 4150 CMV steel, ensuring toughness and longevity
  • 1:7 twist for improved accuracy with a variety of bullet weights
  • Nitride Coating for increased corrosion resistance and a longer barrel life
  • Threaded 1/2 x 28 for Flash Hider installation (included)

• Gas System:

  • Carbine Length Gas System for reliable performance in various shooting conditions

• Upper Receiver:

  • A3 Flat Top Upper Receiver made from 7075-T6 aluminum forgings, ensuring strength and rigidity
  • Black hardcoat anodized to MIL-SPEC standards for enhanced durability and resistance to corrosion
  • Forward assist and dust cover installed for ease of operation and protection

• Handguard:

  • Magpul MOE Carbine-Length Handguard in FDE, known for its rugged durability and lightweight design
  • Includes Magpul MOE drop-in rail system in either FDE or Black (choose color option)

Additional Information:

• Includes:
  • AR-15 Snap Ring, Delta Ring, and Weld Spring for easy assembly
  • Flash Hider to reduce muzzle flash during shooting
• Does Not Include:
  • Bolt Carrier Group (BCG) and Charging Handle – both sold separately

Compatibility:

• M4 Feedramps for enhanced feeding and improved reliability with a wide variety of ammunition
• Compatible with all standard AR-15 lower receivers and Mil-Spec components

With 5.56 NATO and .223 Wylde compatibility, the AR-15 5.56/.223 16" M4 Magpul MOE Flat Top Upper Assembly in FDE offers a high-performance, versatile, and customizable option for your AR-15 build. Pair with your preferred BCG and charging handle to complete the setup and enjoy optimal performance for your shooting needs.

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.

What is a .223 Wylde chamber?

A hybrid chamber that safely fires both 5.56 NATO and .223 Remington while giving the tighter accuracy of a .223-style throat.

Is a bolt carrier group included?

No. The bolt carrier group is sold separately; any standard 5.56 AR-15 BCG will work.

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

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