The Premium 80% Lower Fire/Safe Marked Billet has been redesigned with you in mind. The Premium 80% Billet has been enhanced and now offers a threaded bolt catch release hole as well as a threaded rear takedown detent hole.
These enhancements allow for easy and fluid install of your AR Lower parts kit components, ending some of the most frustrating aspects of your 80% lower build. Each Premium 80% Lower Billet will come with the needed screws and hex key for install.
Find a lower parts kit to complete your billet AR15 80% lower by clicking here.
(1) Black Fire/Safe Marked Billet 80% Lower Receiver:
- For AR-15 builds (5.56/.223/300 BLK/6.5 Grendel)
- Type III Hard Anodized Billet
- Color: Anodized Black
- 100% Mil-Spec
- Quantity: 1
- Fire/Safe Marked: Yes
- Billet 6061-T6 Aluminum
- Threaded Bolt Catch Hole
- Threaded Rear Takedown Detent Hole
- Screws and Hex Key
- Broached Magwell
- Enhanced, heavy duty trigger guard
- 100% Made in the USA
How to Finish Your AR-15 80% Lower
Cutting and drilling your 80% lower to make it functional requires an AR-15 jig. We recommend the Elite Builder Jig, available here -- it's capable of finishing all three lowers included in this bundle. Follow these detailed, step-by-step instructions to fabricate your 80% lower using the Elite Builder Jig.
Assembling Your AR-15 Lower
Once your lower is fabricated, it's time to assemble it. You'll need an AR-15 lower parts kit, available here, and a buffer tube kit. Follow our step-by-step picture guide for installing your lower parts kit and buffer assembly.
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.