Whether you just bought an AR15 kit to start a build, or you're finishing a rifle or pistol with a forged or billet AR15 receiver blank, the AR15 jig is the one tool you need to turn your 80% lower into a finished stripped receiver. We partnered with top gunsmiths and American manufacturers to bring easy-to-use, rugged 80% jigs to the AR-15 market, so amateur builders and new shooters with no experience can build your first or next gun truly from scratch.
The AR15 jig provides the measurements for cutting your 80% lower's fire control cavity, where the trigger, hammer, and parts kit will install. Each jig also includes side plates that secure the receiver for machining via its exterior walls. Those plates providing pre-drilled template holes for where you'll drill the pin holes for the trigger, hammer, and disconnector. These features remove virtually all the measuring and calculations required. All you do is secure the jig in a vise, power up the drill press or mini-mill, and let the jig guide the included bits for cutting and drilling.
With the receiver blank market in full swing, various manufacturers have developed a plethora of new 80% lowers. In addition to our own billet and forged units, polymer receivers now exist for building an ultra-light AR15. We've partnered with those makers to provide polymer 80% jigs that are incredibly easy to machine and super-affordable.
Forged vs. billet fitment: Some AR-15 80% jigs will only work with a forged receiver blank. Billet 80% lowers often feature different exterior shapes compared to a mil-spec receiver, which do not allow for some jigs to properly seat against the receiver's walls. Simply verify compatibility with your chosen 80% lower on the product page when ordering your jig.
Execute the right to bear arms today. Your build awaits you.
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.