AR Rifle Kits

AR Rifle Kits

Quality, mil-spec, affordable AR-15 and LR-308 rifle kits. But why ours, specifically? For starters, our kits aren't legally considered firearms. Even with an included billet or forged 80% lower, these parts kits do not yet function -- not until you fabricate your receiver blank with the right 80% jig and tooling. That means your kit ships direct to your door, minus all the extra taxes, fees, and FFL paperwork. But cost savings aren't the only reason to consider our 5.56/.223 and .308 build kits:

Industry-Leading Specs for Each Rifle Kit

  • 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

 Mil-Spec 80% Lower Receivers

Completing each kit is a billet (6061-T6) or mil-spec forged (7075-T6) aluminum 80% lower, sized up for the appropriate 5.56 or .308 magazines and included parts kit, buffer, and upper assembly. Once you've cut and drilled your lower receiver, assembling your rifle kit is no different than piecing together a store-bought stripped lower receiver or other LPK and upper. First time building a black rifle with a build kit and 80% lower? You probably have some questions.

Reference our guide discussing relevant state and federal 80% lower laws here.

What's Included With Your Kit

Each rifle kit is considered complete from muzzle to buttstock. Aside from cutting and drilling the included lower receiver blank, everything you need to assemble a functional rifle ready for the range is included:

  • (1) 5.56/.308 80% Lower Receiver
  • (1) AR-15 or LR-308 Upper Assembly
  • (1) Mil-spec Lower Parts Kit
  • (1) Buffer & Buttstock
  • (1) Bolt carrier group

State Laws May Vary

Contrary to federal law, some states have either restricted or banned the sale, transfer, and ownership of 80% lowers, firearm blanks, and other gun parts. Because of these restrictions, we cannot ship our products to certain states. Please confirm whether your state is restricted on our Shipping & Return Policy before placing an order. We cannot fulfill orders to restricted states if placed.

 


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.

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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, 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.