300 Blackout Black Anodized Pistol Upper Receiver Assembly 10.5″ Barrel 10″ M-Lock Handguard


The Barrel on this Upper Receiver Assembly Less than 16″ in Length and it is Legal to Use only on AR Pistol Lower Receivers and or NFA Registered Short Barrel Rifle Lower Receivers. Please Check National Firearm Act Laws Before Purchase

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-15 300 Blackout Pistol Upper Receiver Assembly, Black Anodized, 10.5″ Pistol Length Barrel, 10″ Free Float M-Lock Super Slim Ultra Light Handguard

Specifications :


  • 10.5″  4150 Chrome Moly Vanadium Steel Heavy Contour Barrel Profile, Custom Black Nitride Heat Treated Finish
  • 1:7 Twist, 5/8×24 Thread, 300 Blackout Caliber, Pistol Length Gas System

Upper Receiver

  • Forged 7075 T6 Aluminum , Black Anodized  Finish
  • Precision machined to M4, M16 Specs
  • Forward Assist, Dust Cover, Shell Deflector, .250 Takedown Pin Holes, M4 Feed Ramps


  • 10″ in Length Custom Battle Worn Black Anodized Finish, Duracoted Corrosion Resistant Clamp On No Timing Steel Barrel Nut
  • Lightweight 6061 T6 Aluminum , 7.8 OZ, Inside Diameter 1.35″ , M-Lock Narrow Profile, Four Quick Detach Mounts, Anti Rotational Tabs

Gas System

  • Direct Impingement
  • .750 Low Profile Steel Gas Block , 9.75″ Carbine  Length Stainless Steel Gas Tube 

Muzzle Brake

  • 308 Flash Can Muzzle Device
  • 5/8 x 24 TPI Thread, Length 2.5″ Outside Diametr 1- 1/8″
  • This Muzzle Device will Forward Sound, Flash and Gases Away from Shooter and Bystanders, will Reduce Side Shock wave

Ambidextrous Charging Handle Included