300 Blackout Black Anodized Upper Receiver Assembly16″ Spiral Fluted Barrel 12″ KeyMod Handguard


Our Goal is to make our Complete Uppers in Best Quality, Durable, Safe to Use, Light Weight, Good Looking, Reliable and Affordable

On Our Cerakoted Uppers We Use Only Our Own Custom Cerakoted Parts and they are 100% Color Matching

Out of stock



 AR-15 Upper Receiver Assembly, Chambered 300 Blackout  16″ Carbine Length Spiral Fluted Barrel, 12″ Free Float Keymod Handguard Curved Front

Specifications : 


  • 16″ 300 Balackout HBAR
  • 4150 Gun Quality Steel,Chrome Moly Parkerized Finish
  • Heat Treated to RC 28-32 Hardness, and Stress Relieved.
  • Spiral Fluted
  • 1×8 Twist
  • 5/8x24Thread. 

Upper receiver        

  • Forged 7075 T6 Aluminum, Anodized Black 
  • Forward Assist, Dust Cover, Shell Deflector     
  • .250 Takedown Pin holes     
  • M4 Feed Ramps     
  • Precision machined to M4, M16 Specs     
  • Usable on any 223/5.56 Lower Receiver with same BCG and Charging Handle 


  • Top Flat Picatinny Rails,T- Marks
  • 3 Sides Middle KeyMod Cutouts For Mounting Rail Segments to Attach Accessories Such As Grip, Laser Sights, Flashlights, etc.
  • QD Sling Attachment Mounts on Front and Rear on Each Side
  • Length: 12 1/8”
  • Inside Diameter: 1.35”
  • Weight with Barrel Nut 9.8 OZ
  • Serrated Surface Steel Barrel Nut And Two Hex Screws on Handguard Will Prevent Any Movement After Installation
  • Made from High Quality Aluminum Alloy In Durable Mil-Spec Style With Black Hard Coat, Scratch Resistance Anodized Finish

Gas System 

  • .750 Low Profile Steel Anodized Gas Block 
  • 9.3/4 Carbine Length Stainless Steel Gas Tube 

Muzzle Brake

  • 308 FXC A-1 Style Tactical Muzzle Brake Compensator
  • 5/8X24 TPI Thread Black Oxide Coated.

Ambidextrous Charging Handle Included