AR9 80% Lower – Fire/Safe Marked – 9mm – Billet
Original price was: $119.99.$99.99Current price is: $99.99.
73 in stock
Ships next business day
Financing available on $300+ orders
Specifications
| Attributes | Value |
|---|---|
| Weight | 1 lbs |
| Dimensions | 12 × 6 × 4 in |
| Caliber |
9mm |
| Finish |
Anodized |
| Material |
Billet 6061-T6 Aluminum |
| Platform |
AR9 |
Description
Our new and improved billet AR-9 80% lower is here!
Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second generation AR-9 80% lower is better than ever. Made from quality billet 6061-T6 aluminum. Compatible with standard AR-15 lower parts kit components, and all 9mm AR uppers.
ONLY compatible with standard 9mm GLOCK® OEM magazines.
- LRBHO (Last Round Bolt Hold Open) – Since our AR-9 lowers do not house an internal linkage for the bolt catch, you’ll need an upper receiver with integrated LRBHO to keep the bolt back on an empty magazine. Double-check your upper’s specs to ensure full functionality.
AR-9 80% Lower Specifications
- Compatibility: 9mm Parabellum
- Construction: Billet 6061-T6 Aluminum
- Finish: Type III Hardcoat Anodizing
- Color: Matte Black
- Fitment: 100% Mil-Spec
- Fire/Safe Engraving: Yes
- Bolt Catch: Not-threaded
- Features: Integrated trigger guard, Flared magwell, GLOCK® OEM magazine compatibility
- Includes: AR-9 ejector, 9mm magazine catch
- 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.
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?
DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 80% Lowers, a/k/a 80-lower.com nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 12 × 6 × 4 in |
| Caliber | 9mm |
| Finish | Anodized |
| Material | Billet 6061-T6 Aluminum |
| Platform | AR9 |
163 reviews for AR9 80% Lower – Fire/Safe Marked – 9mm – Billet
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 Restrictions
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.











Emaurie –
Loving this new billet lower. In some other AR9 lowers that I’ve tried, the mag catch wouldn’t work with the Glock magazines that I have. That is not the case here!
William Bronson –
The shipping on this lower was FAST!! Started my build last night and finally put my AR9 together. Taking it to the range next week and I can’t wait!
Greg –
Just finished this lower and it works perfectly with my setup!
John –
Love the quality of this lower! I’ll be buying another lower from you guys soon.
Emile –
This new lower is AMAZING! I will be buying more soon!
Terry C. –
The 9mm lower is a quality lower. It milled out greati. All parts installed with ease. Can’t wait for my next build.
steven p. –
I can’t help with a review I was sent the wrong receiver and still waiting for the right one
David M. –
I received this unit just before the Fourth of July .What better way to celebrate the country’s birthday and our 2nd. than to build and ar-15 rifle a symbol of freedom and it was building this receiver. David Marr
Robby G. –
Fit perfect in my jigAfter putting it together I never had one malfunction
Nicholas Nuby –
Lower came out awwsome, no complaints at all. Build came out even better than expected. Now just have to get out and do some shooting to see how she runs.