The best-selling forged 80% lower, now skeletonized.
Trying to build an ultra-light forged AR? Running translucent mags? Just want something different? This skeletonized AR-15 80% lower is the perfect option for your custom build. It's still forged from 7075-T6 aluminum, then CNC'd and cut to shape, ensuring it retains adequate strength and reliability despite its skeletonized finish.
This lower ships "in the raw," with no anodizing nor coating, allowing you to apply any finish of your choice for a 100% custom look. This 80% lower works with all mil-spec and standard AR-15 components.
Skeletonized 80% Lower Specifications
- Compatibility: 5.56/.223, 300 BLK, 6.5 Grendel
- Construction: Forged 7075-T6 Aluminum
- Fitment: 100% Mil-Spec
- Fire/Safe Engraving: No
- Features: Broached and skeletonized magazine well, optional tension set screw
- 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:
Make it Easy! Pair With an AR Build Kit
Want all the parts you need to build your AR-15 in a single box? Pair this 80% lower with an AR Build Kit! Our build kits include a barreled upper assembly with a bolt carrier group and charging handle, and all the lower parts you need to build your finished 80% lower, including a lower parts kit and buffer kit.
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?
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.
- Material:
- Forged 7075-T6 Aluminum
- Finish:
- Raw
- Caliber:
- .300 AAC Blackout
- Caliber:
- 5.56
- Caliber:
- .223 Wylde
- Platform:
- AR15