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Quality, custom AR builds for most calibers and platforms.
People love the AR-15 because it's so easy to customize: Want a personal-defense weapon? Grab a 9mm pistol kit. Ready to send rounds downrange past 500 meters? Check out the available Creedmoor builds that provide MOA accuracy. We've taken the time to develop each AR build with the right specifications and parts for all the most popular calibers:
Whether you're gunning for an up-close-and-personal pistol or a long-range tack driver, you'll find the right pistol and rifle AR build you need to complete your fabricated 80% lower or store-bought stripped lower receiver. Each AR build includes the following components:
Need help? Check out our guide: How to Build an AR-15!
None of the available AR build you see include a stripped lower receiver, or an 80% lower. Instead, we left that up to you. Order a build today, and it'll ship with all the other non-firearm components required to assemble your AR into a custom rifle or pistol.
Contrary to federal law, some anti-gun states have attempted to claim these builds are firearms. This runs counter to well-established legal precedent, basic common sense, and even the ATF's own guidelines. Unfortunately, we cannot fulfill shipments of these AR builds to all 50 states. The following states are restricted without exception. Please see our Shipping & Returns Page for more info.
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.
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.