80% Lower Fire/Safe Marked – Anodized Black

Our famous, original forged 80% lower.
It’s the lower trusted by tens of thousands of AR builders. Proudly forged, cut, and anodized in the U.S.A., this 80 percent lower is the key to building your custom AR-15 truly from scratch. This receiver blank features a matte black anodized finish that perfectly matches any upper receiver. Made to fit all standard (Mil-Spec) parts kits, buffer tubes, grips, magazines, and stocks.
80% Lower Specifications
Compatibility: 5.56/.223, 300 BLK, 6.5 Grendel
Construction: Forged 7075-T6 Aluminum
Finish: Type III Hardcoat Anodizing
Color: Matte Black
Fitment: 100% Mil-Spec
Fire/Safe Engraving: Yes
Features: Broached Magwell
100% Made in The USA
Assembling Your 80% Lower
Once your lower is fabricated, it’s time to assemble it. You’ll need the following components:
Lower Parts Kit
Buffer Tube Kit
Upper Assembly
Need Help Building? Read Our Guides
Follow our step-by-step picture guide to install your lower parts kit and buffer.
Not sure which parts to pick? Read our Ultimate Guide on How to Build an AR-15.
New to building custom guns? Read our FAQ: What Is An 80% Lower?
Video: Our 80% Lower Features