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  • Polymer80 P80-JIG-RL556v3 Jig Kit

    Polymer80 P80-JIG-RL556v3 Jig Kit

    Polymer80's RL556v3 jig is one of the most affordable AR-15 80% lower jigs on the market. If you're trying to keep your 80% build as budget-friendly as possible, the RL556v3 disposable jig is the ticket. Buy this one-time-use jig and use the savings to...

    $59.99
  • Polymer80 AR15 80% Receiver w/ Jig Kit Polymer80 AR15 80% Receiver w/ Jig Kit Polymer80 AR15 80% Receiver w/ Jig Kit Polymer80 AR15 80% Receiver w/ Jig Kit Polymer80 AR15 80% Receiver w/ Jig Kit

    Polymer80 AR15 80% Receiver w/ Jig Kit

    Polymer80's original polymer AR-15 80% lower and jig kit are back! This AR-type lower is a simpler, more affordable version of P80's upgraded "RHINO" RL556V3 80% lower. This lower provides the same, exact functionality and capability when it comes to...

    $69.99
  • Tap Magic EP-Xtra® Cutting Fluid (4oz)

    Tap Magic EP-Xtra® Cutting Fluid (4oz)

    Lubrication required for your 80% jigs. If you're cutting and drilling any aluminum 80% lower or frame, you need appropriate cutting fluid. No, regular old WD-40 won't do. Tap Magic EP-Xtra Cutting Fluid provides proper lubrication, chip control, and...

    $9.99
  • Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling)

    Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling)

    A tier-one 80% jig for completing multiple lowers. The Broken Arms Jig is engineered to provide precision at-home fabrication for multiple 80% lowers. Compatible with both AR9 and AR-15 80% lowers, the Broken Arms Jig provides easy-to-follow templates...

    $279.99
  • Elite Builder 80% Lower Jig (AR-15/AR-9) Elite Builder 80% Lower Jig (AR-15/AR-9) Elite Builder 80% Lower Jig (AR-15/AR-9) Elite Builder 80% Lower Jig (AR-15/AR-9) Elite Builder 80% Lower Jig (AR-15/AR-9)

    Elite Builder 80% Lower Jig (AR-15/AR-9)

    The Elite Builder is back. Our popular and proven 80% jig is back, and it's ready to help you finish your custom receiver. Compatible with both forged and billet AR-15 80% lowers and AR9 80% lowers, the Elite Builder Jig includes easy-to-follow drilling...

    $139.99 - $249.99
  • The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15 The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15 The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15 The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15 The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15

    The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15

    Now compatible with AR-10/LR-308, AR-15 and AR-9! Our popular and proven 80% jig is back, and it's ready to help you finish your custom receiver. Compatible with both forged and billet AR-15 80% lowers, .308 80% lowers, and AR9 80% lowers, the Elite...

    $214.99 - $319.99
  • Broken Armory Tooling for 80% Jig

    Broken Armory Tooling for 80% Jig

    Quality replacement tooling for the Broken Arms 80% Jig. The Broken Arms 80% AR-15/AR9 Jig provides reusable plates and templates, allowing you to complete more than one AR-type 80% lower receiver. But drill bits and end mill bits inevitably wear out...

    $84.99
  • Elite Builder (for 80% Jig) Tooling

    Elite Builder (for 80% Jig) Tooling

    Cutting and drilling your 80% lower receiver can be a breeze, or a pain -- it truly depends on the drill bits and end mill bits you use to machine it. That’s why you need to invest in the highest quality bits available, like this 80% Jig Tool Kit...

    $89.99
  • Elite Builder 80% Lower Jig - AR-15 Patriot Upgrade

    Elite Builder 80% Lower Jig - AR-15 Patriot Upgrade

    If you bought the AR-10 Elite Builder Jig to fabricate a .308 80% lower, and you now want to fabricate an AR-15 80% lower, you're in luck: This "Patriot" upgrade provides the smaller plates required to secure an AR-15 80% lower in your AR-10 Elite...

    $69.99
  • Juggernaut Tactical - AR-15 80% Lower Universal Jig Juggernaut Tactical - AR-15 80% Lower Universal Jig Juggernaut Tactical - AR-15 80% Lower Universal Jig Juggernaut Tactical - AR-15 80% Lower Universal Jig

    Juggernaut Tactical - AR-15 80% Lower Universal Jig

    Quick, easy machining for any AR-15 80% lower. The Juggernaut Jig secures your AR-15 80% lower with 8 hex bolts, providing a rock-solid, vise-ready unit that makes fabrication a breeze. Just follow the order of the numbered templates, drill your pin...

    $149.99 - $249.99
  • Liberty 80% Lower Jig (AR-15/AR-9) Liberty 80% Lower Jig (AR-15/AR-9) Liberty 80% Lower Jig (AR-15/AR-9) Liberty 80% Lower Jig (AR-15/AR-9) Liberty 80% Lower Jig (AR-15/AR-9)

    Liberty 80% Lower Jig (AR-15/AR-9)

    A quality, affordable AR-15 80% jig. The Liberty Jig is one of the most affordable drill press jigs available today. The Liberty Jig provides quality bits for cutting and drilling, and quality metal templates and guides for fabricating your lower. The...

    $104.99 - $199.99
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Need to finish your 80% lower? Grab an AR15 jig.

Under federal law, an unfinished 80% lower is not considered a firearm. To cut, drill, and fabricate your receiver blank -- turning it into a firearm by legal definition -- you'll need an AR15 80% jig. We've got you covered with quality jigs made for all AR-type 80% lowers.

How The AR15 Jig Works

While AR15 jigs may all look a bit different, they do the same things: Provide you with the guides and templates for cutting your AR-15 80% lower's fire control cavity, and drilling the pin holes for the hammer, safety, and trigger. Completing these various fabrication steps turns your "not-a-firearm" into a firearm by definition.

AR Jigs: What's Included

Typically, all AR-type 80% jigs include components that are identical or substantially similar:

  • Two side plates for securing the receiver
  • Top plates with drilling and cutting templates
  • Pin hole drilling guide holes on the side plates
  • Drill and end mill bits for completing the 80% lower

80% Jigs Are Banned in Some States

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 check whether we can ship to your state 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.

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.