AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly | MLOK Rail

AR-15 Line

AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly | MLOK Rail

The AR-15 300 AAC Blackout 16" Stainless Steel Diamond Fluted Upper Assembly is a high-performance upgrade for your AR-15 platform. Chambered in 300 AAC Blackout, this upper offers powerful ballistics for both suppressed and unsuppressed shooting. Featuring a diamond-fluted 416 stainless steel barrel, it enhances barrel rigidity and cooling while reducing weight for improved handling and accuracy. The MLOK handguard provides ample space for accessories and customization. This upper uses your standard .223/5.56 bolt carrier group and magazines—no need for special parts.

Please note: This upper is custom fluted to order; please allow 3-4 weeks for delivery.

Assembly Features:

• Barrel:

  • Length: 16" for a balance of performance and compactness
  • Material: 416 Stainless Steel for strength and durability
  • Profile: H-Bar Contour for optimal rigidity and performance
  • Fluting: Diamond Fluted to reduce weight while maintaining strength and heat dissipation
  • Chamber: 300 AAC Blackout for versatile use with both supersonic and subsonic loads
  • Twist Rate: 1:7 RH for stability of heavier projectiles
  • Thread: 5/8x24 for compatibility with most muzzle devices
  • Gas System: Carbine-length gas system for smooth cycling
  • Muzzle Device: Stainless steel X-Treme Muzzle Brake for recoil control and enhanced accuracy

• Upper Receiver:

  • Material: Certified 7075-T6 Aluminum Forging for strength and durability
  • Finish: Black Hardcoat Anodized to MIL-SPEC for corrosion and wear resistance
  • Features: Includes Forward Assist and Dust Cover for operational reliability
  • Feedramps: M4 Feedramps for smooth feeding and reliable cycling

• Gas System:

  • Gas Block: Low Profile .750 Steel Gas Block, Black Hardcoat Anodized
  • Gas Tube: Carbine-Length Stainless Steel Gas Tube for reliable gas flow and smooth cycling

• Handguards:

  • Length: 12" Mid-Length MLOK Free Float Rail for ergonomic handling and superior customization options
  • Material: Aircraft-Grade Aluminum, Black Hardcoat Anodized for durability and lightweight performance
  • MLOK Design: Slim profile for easy accessory attachment and versatility

Important Notes:

• Does not include BCG or Charging Handle, but they can be purchased separately.
• Custom Fluting: Please allow 3-4 weeks for delivery.
• Images may not be an exact representation of the product; variations may exist due to stock availability.