DIY 7.5" 300 BLACKOUT AR15 Upper Receiver Project Kit 2B - FREE SHIPPING

$ 344.08

Building your own 7.5" 300 Blackout Free Floated AR15 Pistol or SBR Upper Receiver is a snap when you have all of the right parts. It's even easier when someone has already done the legwork to source all of the components, made sure they are of the highest quality and fit and then put them all into a nice little package for you and it's a complete no-brainer when they do all of that and then offer it to you at a price you cannot beat if you tried putting it all together yourself AND THEN offering to ship it all to you FOR FREE!

Well that's exactly what we have done and you're going to like it!

This build kit includes all of the following high-quality parts:

  • 7.5" Heavy Profile 300 Blackout Chambered Barrel, Parkerized Finish, Pistol Gas
  • Ground Zero Precision Premium Full-Mass Bolt Carrier Group - Slick Black Phosphate, Chrome Lined, Magnetic Particle Inspected, High Pressure Tested
  • Ground Zero Precision 7075 T-6 Aerospace Grade Aluminum Stripped Upper Receiver, Hard Coat Anodized (Black) to MIL-A-8625
  • 4" Free-Float AR-15 Knurled Hand Guard With Barrel Nut - 6065 T-6 Aluminum, Anodized (Black)
  • Ground Zero Precision Mod 1 .750 Stainless Steel Micro Gas Block - Natural Stainless Finish
  • Seamless Stainless Steel Pistol Length Gas Tube with Roll Pin
  • A2 "Birdcage" 5/8 X 24 Flash Hider with Crush Washer - Salt Bath QPQ Nitride Finish
  • Mil-Spec Charging Handle - 7075 T-6 Aerospace Grade Aluminum, Hard Coat Anodized (Black) to MIL-A-8625
  • Mil-Spec Dust Cover Door Assembly with Pin, C-Clip and Spring
  • Mil-Spec Target Forward Assist with Spring and Roll Pin


Recommended tools for assembly (not included):

    • Small Rubber Mallet
    • Roll Pin Punch Set
    • Vise
    • Upper Receiver Vise Block
    • Needle Nosed Pliers