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The pistol-caliber carbine, or PCC, has become a popular 9mm-chambered configuration for the AR platform. Until recently, you would've had to convert your existing AR-15 into this config, dubbed the AR9, with a sloppy "box magazine" conversion kit and new barrel and chamber fitted to your existing receiver. We decided to offer up proper, from-scratch kits. 

AR9 Kit Specifications & Features

  • All carbon barrels forged from MIL-B-11595 E steel (4150 or Chromoly Vanadium)
  • All carbon barrels and chambers treated with Nitride (Melonite) or Phosphate coating
  • All stainless / match barrels forged from Crucible 416R steel for sub-MOA accuracy
  • Includes G-9 Hybrid 9mm Bolt Carrier Group (compatible with AR-15 lower parts kit)
  • All stripped upper receivers forged from mil-spec 7075 T6 aluminum
  • All buffer assemblies and lower parts kits are mil-spec in fit and finish
  • All upper assemblies ship test-fired and ready to install with no additional assembly required.

New to the pistol-caliber carbine? Read our in-depth AR9 Build & Ballistics Guide.

State Laws Vary

Some states have enacted restrictions against pistol kits like these, or otherwise recognize such kits to be firearms, contrary to federal law -- even though these kits do not include a stripped lower receiver. Be sure to check your local and state laws before purchasing. We cannot fulfill orders to some states. We strongly recommend reviewing our Shipping & Returns policy to ensure your state is not restricted before ordering. 

It's time to build your custom AR9. 

 


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 GunBuilders.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.