AR Rifle Kits
Kits available in 5.56 NATO, .223 Wylde, 6.5 Creedmoor, .308 Winchester, and 300 Blackout.
Join the club of amateur gunsmiths and dedicated shooters who've proudly pieced together their own AR-type rifles from scratch. Each of our Rifle Kits features mil-spec fittings and coatings, and every component is precisely forged, hammered, CNC machined, and coated stateside. Our kits run the gamut, from retro A2-style shooters to subsonic 300 BLK guns, to precision bench rifles in 6.5 Creedmoor made for confident 1,000-yard shots.
Rifle 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
- All bolt carrier groups (BCGs) full-auto, staked, M16 profile, chrome-lined
- 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.
Are AR build kits legal?
Yes. Federal law and the Bureau of Alcohol, Tobacco, and Firearms do not recognize any components in these Rifle Build Kits as a firearm. The Gun Control Act of 1968 allows for a private individual to build a firearm at home, from scratch, with no serial number or paperwork required. Keep in mind, this pertains to federal law. Some states have enacted restrictions against Rifle Kits like these, or otherwise recognize such kits to be firearms, contrary to federal law. 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.
First time building? Use our helpful guides.
- How to Build an AR-15: The Complete Parts Guide
- 300 Blackout Parts & Compatibility Guide
- .308 Winchester vs. 6.5 Creedmoor
- The AR-10 vs. LR-308 Parts Guide
- 6.5 Creedmoor vs. 6.5 Grendel
- The AR9 Pistol Build Guide
Have further questions about the legality of 80% lowers and building guns at home? Check out our guide on the relevant state and federal laws. This guide is not legal advice and cannot be construed as such. Always seek counsel with a licensed attorney if you're ever unsure about firearm laws.
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.