DIY Stainless 7.5" 300 BLK AR15 Pistol Project Kit (S75BX-MS)

MSRP: $465.00
Now: $340.00
(You save $125.00 )


Building your own 300 Blackout AR15 pistol 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.

Well that's exactly what we have done and you're going to love it! Just add your own stripped AR15 lower receiver and handguard and you're good to go!


  • AR15

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

  • 7.5" Ground Zero Precision Lightning Series 300 Blackout Chambered, 1:7 twist Barrel - 416R Stainless, Magnetic Particle Inspected, High Pressure Tested, M4 Feed Ramps, Pistol Length Gas, Natural Stainless Finish
  • Ground Zero Precision Dead Bolt Full Mass Black Phosphate Bolt Carrier Group - Carrier machined from 8620 steel, Bolt machined from Carpenter 158 Steel, case hardened, MPI, HPT, Full Auto Rated
  • Aero Precision 7075-T6 Aerospace Grade Aluminum Stripped AR15 Upper Receiver, Hard Coat Anodized (Black) to MIL-A-8625, M4 Feed Ramp
  • Black Dirt Rifleworks Super Performance Series Ultra-Low Profile .750 Gas Block - Black Nitride Finish
  • Seamless Stainless Steel Pistol Length Gas Tube with Roll Pin
  • A2 "Birdcage" 5/8 X 24 Flash Hider with Crush Washer - Black Nitride Finish
  • Mil-Spec AR15 Charging Handle - 7075-T6 Aerospace Grade Aluminum, Hard Coat Anodized (Black) to MIL-A-8625
  • Mil-Spec AR15 Ejection Port Door Assembly with Pin, C-Clip and Spring
  • Mil-Spec "Target" Forward Assist with Spring and Roll Pin
  • Mil-Spec Lower Parts Kit
  • Mil-Spec 6-Position Carbine Buffer Tube - 7075-T6 Aerospace Grade Aluminum, Hard Coat Anodized (Black) to MIL-A-8625
  • "Slick-Kote" AR15 Carbine Buffer Spring
  • 3.0 oz Carbine Buffer
  • Mil-Spec Castle Nut
  • Mil-Spec End Plate

Previous SKU: GZP-PBK-75-SS-300BLK-H-2B7S

Additional Details


Related Products

Customers Also Viewed

Subscribe to our newsletter

Get the latest updates on new products and upcoming sales

No thanks