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:
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
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
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- Material:
- Forged 7075-T6 Aluminum
- Caliber:
- .300 AAC Blackout
- Caliber:
- 5.56
- Caliber:
- .223 Wylde
- Platform:
- AR15
- Finish:
- Anodized
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