Introducing the dedicated 9mm 80% Lower Receiver
This 80% 9mm lower receiver is fabricated to use Glock® (G17 and G19) 9mm magazines out of the box. No 9mm conversion blocks or custom components necessary!
CNC'd from 6061-T6 billet aluminum, this receiver blank features enlarged mag well ramps for quick and easy reloads. We've left this lower raw -- unfinished, with no coating, so you can apply your own, custom finish.
AR-9 80% Lower Specifcations
- Compatibility: 9mm Parabellum
- Construction: Billet 6061-T6 Aluminum
- Finish: Raw
- Color: Matte Black
- Fitment: 100% Mil-Spec
- Fire/Safe Engraving: Yes
- Features: Integrated trigger guard, Flared magwell, GLOCK® magazine compatibility
- 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:
*Although made to chamber 9mm, this lower still uses a standard AR-15 (5.56/.223) lower parts kit and standard AR-15 buffer tube. 9mm ARs require a heavier buffer to reduce felt recoil.
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?
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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.
- Caliber:
- 9mm
- Finish:
- Raw
- Platform:
- AR9
