AR9 Pistol Kit (10.5" Barrel & 9" M-LOK Handguard) with 9MM 80% Lower



AR9 Pistol Kit (10.5" Barrel & 9" M-LOK Handguard) with 9MM 80% Lower The AR market is just now beginning to showcase some pretty cool departures from the usual .223 and 5.56 “stuff”. Notably, that includes pistol-caliber carbines. Unfortunately, all this new stuff has been expensive – until now! 80-Lower is proud to announce the first-ever, 9mm AR 15 Complete Built Kit, including a billet 80% lower, built by design, specifically for 9mm!

This new kit is completely exclusive to 80-Lower, thanks to our partnership with some industry leaders. This is the first billet 7075 true 9MM lower receiver currently available on the market. Featuring a hard coat anodized finish, engraved with Fire and Safe markings, ambidextrous mag release, enlarged mag feed ramps for competition shooters, compatible with Glock magazines, and finally, this 80% lower is compatible with existing jigs, too!

The upper in this kit comes prebuilt, head-spaced, and ready to fire out of the box. You’ll enjoy superior accuracy thanks to a Chromoly 10.5” barrel featuring a nominal 1:10 twist and nitride, heat-treated finish. A billet 7075 T6 upper receiver houses a 9mm G-9 Hybrid BCG, built from 8620 steel. This hybrid bolt includes a charging handle, ready to go out of the box.

The included lower parts kit ensures a crisp, smooth trigger affords little creep, take-up, or over-travel. The provided SOB brace, 9” M-Lok free-floating railed handguard, and Magpul grip provides increased accuracy and comfort and helps keep your new 9mm AR pistol compact, lightweight, and maneuverable. Why Our AR-9 Built Kit?

  • True 9MM Billet Lower Receiver
  • 100% complete pistol kit – just finish the lower!
  • Ships straight to your door legally – no FFL required!
  • Features by-design, billet 9mm lower
  • 10.5” Chromoly barrel guarantees precision accuracy
  • Prebuilt upper ships ready to fire out of the box
  • Includes lightweight, free-floated 9” M-Lok handguard
No FFL required  Made in the USA  Lifetime Warranty

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 only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

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, New Jersey, New York, Pennsylvania, 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.