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An AR-15 Pistol Kit is an exciting, cost-effective way to custom build your very own AR 15 pistol in 5.56 NATO or .223 Remington. While providing a shorter barrel and lighter weight, each pistol kit includes a mil-spec and hyper-accurate barrel made from 4150 CMV steel. Each upper is preassembled so there's no guessing when it comes to gas systems, headspacing, handguards, or those high-torque barrel nuts.

Completing Your AR-15 Pistol

With each kit, you will receive almost every component required to build your pistol from start to finish:

  • Preassembled upper receiver
  • M16 bolt carrier group
  • Charging handle
  • Lower parts kit
  • Buffer assembly

To complete your build, you will need to purchase a forged, billet, or polymer AR-15 80% lower

Available in 5.56 NATO and 300 Blackout

We offer Pistol Kits with both 5.56-chambered upper assemblies and 300 AAC blackout-chambered assemblies. These kits also come with varying handguards to suit your rail attachment preferences. Options include M-Lok, Picatinny, Keymod, and MOE (Magpul Original Equipment) with QD-style attachment points. Included flash hiders were hand-picked for optimal function, performance and field use.

AR 15 Pistol Kit Features:

  • 100% mil-spec construction
  • Fully assembled, test-fired upper receiver
  • Includes almost all components required to complete build
  • Available in 5.56 NATO, 300 Blackout chambers
  • 100% Made in the USA

Additional Specifications

  • All barrels are forged from MIL-B-11595 E steel (4150 or Chromoly Vanadium)
  • All stainless barrels forged from Crucible 416R steel, offering sub-MOA accuracy
  • All BCGs are M16 in profile with chrome lining and properly staked gas keys
  • 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 barreled uppers are test-fired to ensure proper assembly

AR Kits: Federal vs. State Law

Some states have banned 80% lowers and certain firearm parts, or have otherwise restricted the sale and ownership of products we sell. So, be sure to check your local and state laws. We can’t ship our products to certain states. Please check our Shipping & Return Policy before placing an order (see restrictions).

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, 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.