Moriarti AR-15 300 AAC Blackout 16" M-LOK Upper – Slip-Over Barrel Shroud

16" 300 BLK Upper with Shroud: Specs

The AR-15 300 AAC 16" MLOK Upper Assembly with Slip Over Barrel Shroud is engineered for shooters seeking precision and power in the .300 Blackout platform. Designed with a pistol-length gas system for optimal cycling, this upper features a 16" heavy contour barrel chambered in 300 AAC and finished with a nitride coating for durability and long-lasting performance. The slip-over barrel shroud with a multi-port muzzle brake helps manage recoil and muzzle rise, making it an ideal choice for both tactical applications and recreational shooting.

Assembly Features:

• Barrel:

  • Length: 16" for a balance of maneuverability and accuracy
  • Material: 41V50 Steel, Nitride Coated for enhanced durability and corrosion resistance
  • Profile: Heavy contour for optimal barrel rigidity and cooling
  • Chamber: .300 AAC Blackout, perfect for both suppressed and unsuppressed shooting
  • Twist Rate: 1:7, Button Rifled for improved stability of heavier projectiles
  • Gas Block Diameter: .750" for compatibility with most aftermarket gas blocks
  • Muzzle Thread: 5/8x24 for compatibility with common muzzle devices
  • Muzzle Device: Slip over barrel shroud with a multi-port muzzle brake to manage recoil and reduce muzzle rise

• Upper Receiver:

  • Material: Certified 7075-T6 Aluminum Forging, Black Hardcoat Anodized to MIL-SPEC
  • Design: A3 Flat Top Upper for compatibility with a wide range of optics and accessories
  • Features: Forward Assist and Dust Cover installed for enhanced reliability and functionality

• Gas System:

  • Gas Block: .750" Low Profile Gas Block made from high-quality steel, Black Hardcoat Anodized
  • Gas Tube: Pistol-length Stainless Steel Gas Tube for a smooth and reliable cycling action

• Handguards:

  • Length: Rifle-Length 15" MLOK Free Float for superior customization and lightweight design
  • Material: Aircraft-grade aluminum, Black Hardcoat Anodized for extra strength and corrosion resistance

Important Notes:

• Does not include BCG and Charging Handle. These can be purchased separately.
• CA and NY compliant, making it legal in states with restrictive firearm laws.
• Images may not be an exact representation of the product; variations may exist due to stock availability. The quality and performance will remain consistent with the listed specifications.

FAQ

Can 300 Blackout ammo be mixed up with 5.56?

Keep them separate. A 300 BLK round can chamber in a 5.56 rifle and firing it can destroy the gun, so mark your 300 BLK magazines and uppers clearly.

Is a bolt carrier group included?

No. Add a standard AR-15/5.56 bolt carrier group; it is available as an add-on on this page.

What does the shroud do?

It covers the muzzle threads and pushes blast forward, away from the shooter, on the short barrel.

Related: 300 Blackout AR-15 uppers · 300 Blackout suppressors · 5.56 NATO vs 300 Blackout