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AR9 Jig

AR9 Jig

The new AR9 platform is a dedicated pistol-caliber carbine built off the original AR-15 upper and lower receivers. Now, thanks to advancements in subsonic AR-type pistols, the AR9 has its own version of a dedicated 80% lower! Functionally the same as an AR-15 lower receiver, the AR9 lower provides better aesthetics when built, especially once that thin 9mm magazine is installed. But to finish your AR9's lower, you need an AR9 80% jig. Each jig listed is compatible with the billet AR9 80% lower and regular AR-15 lowers! 

New to the Pistol Carbine game? Check out the Ultimate AR9 Guide.

Bits and Instructions Included

To make the cutting and drilling processes easier for new builders without experience, each AR9 jig includes the required drill bits for drilling your lower parts kit's pin holes, as well as quality commercial-grade end mill bits for cutting the fire control cavity for your trigger, hammer, and disconnector. 

AR9 vs. AR-15 Jig Compatibility

You'll notice most (if not all) AR9 jigs also describe "AR15" in their title. That's because most of the AR9 jig's exterior dimensions and the required machining steps for the holes and cavity are the same as an AR15's lower receiver. That's the beauty of building this dedicated 9mm carbine: It works with AR-15 parts, yet is properly sized up for 9mm magazines, eliminating that goofy magazine well-to-magazine "my-lower-skipped-leg-day" ratio.

Want to know more? Read the builder's guide to jigs.

Advantages of Our AR9 Jigs

  • No FFL required!
  • Metal jig capable of machining 20+ lowers
  • Compatible with AR9 and AR-15 80% lowers
  • Includes quality commercial-grade tool bits
  • Easy-to-follow instructions included with jig
  • All jigs proudly manufactured in the USA

Execute the right to bear arms today. Your PCC build awaits you.


DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.