300 Blackout FDE Complete Upper Receiver 16″ Straight Fluted Barrel 13.5″ Aim Sports 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



Complete AR-15 Upper Receiver Assembly, Chambered 300 Blackout  16″ Carbine Length Straight Fluted Barrel, 13.5″ Free Float M-Lok Handguard



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

Upper receiver      

  • Forged 7075 T6 Aluminum
  • Heat Treated Hard Coat Custom FDE Cerakoted Finish
  • 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 


  • Aim Sports Clamping Style Mil Spec Free Float M-lok Handguard 13.5″
  • Made from light wegth T6 6061 Aircraft Grade Aluminum
  • Super Slim, Super Light 
  • Heat Treated Hard Coat FDE Cerakoted

Gas System 

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

Muzzle Brake

  • 308 Competition Muzzle Brake
  • Made of C1045 Carbon Steel
  • Heat Treated with Magnesium Phosphate Finish.
  • 5/8 x 24 TPI Thread.
  • Side and Top Ported
  • Reduces Recoil
  • Length 2.24″
  • Bore Diameter 04″
  • This Muzzle Brake Compensator will reduce the recoil, muzzle rise, will improve shooting

Ambidextrous Charging Handle Included