AR-15 5.56/.223 5" Pistol Upper Assembly – Black Nitride, Flash Cone, M-Lok Rail, Micro Gas System

5.56 NATO/.223 Wylde

AR-15 5.56/.223 5" Pistol Upper Assembly – Black Nitride, Flash Cone, M-Lok Rail, Micro Gas System

The AR-15 5.56/.223 5" Pistol Upper Assembly is a compact, high-performance upper, perfect for building your next pistol-caliber AR. Crafted from 4150 CrMoV steel and finished with black nitride, this upper assembly offers unmatched durability, reliability, and accuracy. Its 5" barrel, paired with a 3" flash cone and M-Lok handguard, creates an ideal balance of size and performance. The micro gas system ensures smooth operation for fast follow-up shots, while the flat top upper receiver is built for easy optics mounting.

Key Features:

• Chamber: 5.56 NATO chamber, compatible with both 5.56 NATO and .223 Remington ammunition

• Barrel:

  • 5" Barrel made from 4150 CrMoV steel for ruggedness and durability
  • Black nitride finish for increased corrosion resistance and barrel longevity
  • 1/5 twist rate for improved stabilization of lighter projectiles
  • Threaded 1/2 - 28 for easy attachment of muzzle devices
  • Muzzle Device: 3" Flash Cone, black anodized, reduces flash and enhances shooting comfort

• Upper Receiver:

  • Flat Top Receiver made from certified 7075-T6 aluminum forgings, ensuring strength and rigidity
  • Black hardcoat anodized finish for added resistance to wear and tear
  • Equipped with forward assist and dust cover for smooth operation and protection against dirt and debris
  • M4 feedramps for enhanced reliability and smooth feeding of rounds

• Gas System:

  • Micro gas system for reduced size and optimal performance in compact builds
  • Gas Block: 750 Low Pro Steel, black anodized for added durability

• Handguard:

  • 7" M-Lok Handguard for lightweight and secure accessory mounting
  • Black anodized finish for additional corrosion resistance

• Weight & Length:

  • Weight: 2.5 lbs
  • Overall Length: 15"

Package Contents:

• AR-15 5.56/.223 5" Pistol Upper Assembly with Cone and M-Lok Rail
• No BCG and/or Charging Handle included (both sold separately)