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21 of 21 Items
  • 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

    This Eliter Build 80% Lower Jig is compatible with our Forged 80% Lowers and our Premium Fire/Safe Marked Billet 80% Lowers! Other manufacturer's billet 80% lowers may be compatible with this 80% lower jig, provided their lower receiver design...

    $149.99 - $261.97
  • Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 2 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 3 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 4 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 5

    Polymer80 Lower Receiver and Jig Kit (AR-15, Black)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now you can get a piece of that action too.  We've partnered with Polymer80 to bring you some of their line of 80% lowers, starting with...

    $99.99
  • Sale
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    JMT AR-15 80% Gen 2 Polymer Lower with Jig - Black

    Want the toughest, lightest, and most affordable 80% lower? Check out JMT’s new Gen 2 Polymer 80% Lower. It includes the required 80% jig for cutting the fire control cavity and drilling the holes for your hammer, safety, and safety lever...

    Was: $89.99
    Now: $79.99
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    Liberty 80% Lower Jig (AR-15/AR-9)

    You want to build a gun with your own 2 hands. You’ve caught wind of building an AR from scratch using little more than a drill press. Then look no further for the tool kit to get it done: The Liberty AR-15 Jig is designed to eliminate the need for...

    $79.99 - $89.99
  • jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-1 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-2 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-3 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-4 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-5

    JMT AR-15 80% Gen 2 Polymer Lower with Jig - FDE

    JMT’s Gen 2 Polymer 80 Lower, now shipping in Flat Dark Earth, is the perfect way to complete that ultra-light performance AR build with a receiver that perfectly matches your Magpul furniture! This polymer receiver blank ships with it’s own...

    $79.99
  • Elite Builder 80% Lower Jig - AR-10/.308 Elite Builder 80% Lower Jig - AR-10/.308 Elite Builder 80% Lower Jig - AR-10/.308 Elite Builder 80% Lower Jig - AR-10/.308 Elite Builder 80% Lower Jig - AR-10/.308

    Elite Builder 80% Lower Jig - AR-10/.308

    The .308 AR is one of the most capable and accurate weapon platforms on the market. If you’re building your own AR-10-type rifle from scratch, you need a jig that’s just as accurate. Elite Builder took their precision AR-15 jig and re-tooled...

    $159.99 - $271.97
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    JMT 308 80% Gen 2 Polymer Lower with Jig - Black

    JMT’s beefed up and redesigned Gen 2 Polymer 80% Lower is now available in .308 and 7.62 NATO. Build an AR-10 clone or accurate bench rifle and enjoy critical weight savings without sacrificing reliability. Upgraded Polymer This receiver blank was...

    Was: $109.99
    Now: $99.99
  • JMT 80% Lower and Jig - .308, Polymer, Green JMT 80% Lower and Jig - .308, Polymer, Green-2 JMT 80% Lower and Jig - .308, Polymer, Green-3 JMT 80% Lower and Jig - .308, Polymer, Green-4 JMT 80% Lower and Jig - .308, Polymer, Green-5

    JMT 80% Lower and Jig - .308, Polymer, Green

    JMT’s beefed up and redesigned Gen 2 Polymer 80% Lower is now available in .308 and 7.62 NATO and also now available in the OD green color. Build an LR-308 (or AR-10 clone) or accurate bench rifle and enjoy critical weight savings without...

    $89.99
  • jmt-308-80-gen-2-polymer-lower-with-jig-fde-1 jmt-308-80-gen-2-polymer-lower-with-jig-fde-2 jmt-308-80-gen-2-polymer-lower-with-jig-fde-3 jmt-308-80-gen-2-polymer-lower-with-jig-fde-4 jmt-308-80-gen-2-polymer-lower-with-jig-fde-5

    JMT 308 80% Gen 2 Polymer Lower with Jig - FDE

    That new LR-308 rifle doesn’t need to weigh close to 20 pounds. Between that big barrel, variable-zoom optic, bipod, and bench-ready Magpul buttstock, you’re already tipping the scales. To shave critical weight, try out James Madison...

    $99.99
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    SS80 Builder Tool Set and Jig

    Ready to assemble your G43-compatible pistol? First you need to pick up the SS80 Jig and Tool Kit. This kit is the critical other half to your build project: It includes the tools and jig necessary for cutting and drilling the frame, as well as the...

    $29.99
  • Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black)

    Polymer80 Lower Receiver and Jig Kit (LR-308, Black)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now, there are even parts for the .308 platform of AR rifles, we're helping you get in on that too.  We've partnered with Polymer80 to...

    $124.99
  • Polymer80 Lower Receiver and Jig Kit (AR-15, FDE)

    Polymer80 Lower Receiver and Jig Kit (AR-15, FDE)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now you can get a piece of that action too.  We've partnered with Polymer80 to bring you some of their line of 80% lowers, starting with...

    $9.99
  • Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE)

    Polymer80 Lower Receiver and Jig Kit (LR-308, FDE)

    Please note: The end mill bit is no longer contained in this kit. The manufacturer, Polymer80, decided that the end mill bit is no longer unnecessary to complete this frame.  The industry has burst wide open, and super lightweight polymer parts are...

    $124.99
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Cutting and drilling an 80% frame or receiver for an AR-15, AR9, or LR-308? You've found the #1 source for 80% jigs! We have a carefully-crafted selection from top manufacturers like Elite Builder, Polymer80, and more. Our jigs are all 100% made in the USA and are compatible with all these 80% lowers. We've also recently partnered with leading 1911 manufacturer Stealth Arms to offer quality, affordable aluminum 1911 80% frames and jigs. Every kit available on our site includes the necessary drill bits and end mill bits to cut and drill your frame or receiver blank, making it ready for assembly and your first range day.

New builder? This guide covers the 80 lower jig and its types.

Gunsmithing at Home, No Experience Required

Using an 80 lower jig to cut and drill your frame blank or receiver blank allows you to easily, precisely, and safely fabricate a legal-by-definition firearm at home. Whether it's an AR-type rifle or pistol, GLOCK-compatible frame or 1911 frame, most blanks can be cut and drilled in less than two hours. Each jig includes easy-to-follow instructions. Review the guides below (by platform) for a better idea of the machining steps involved:

Build More, Spend Less

Unless you purchase a polymer receiver or frame with disposable jig, you can use your 80% jig to complete numerous receiver or frame blanks. With the right tools acquired, building another AR rifle or pistol, or 1911 handgun, is less expensive: You don't need to pay extra taxes and fees at the gun store, and there are no FFL transfer fees to pay for an online purchase. When purchasing a "retail" firearm, functional frame, or stripped receiver, these fees and taxes must be paid each time.

Compared to these retail costs, an 80% unit is less expensive because it does not have to be handled, cataloged, or treated like a firearm with the added cost of visiting an FFL. We get to pass those savings on to you!

No FFL required to buy, ship, own, or build

The 80% lower jig is not regulated nor restricted by any State or Federal regulations or laws. Owning and operating one and completing an 80 percent lower is 100% legal under federal law, according to the ATF. Your finished receiver or frame will be a functional firearm, but it won’t require any FFL paperwork, transfer fees, or background check.

Some states have placed restrictions or bans on fabricating firearms at home in this fashion. Please check your local and state laws before building an 80% lower or any other firearm at home. We developed a reference guide to help you find and research the relevant state and federal laws. If you have questions about building a firearm at home, always consult with a licensed attorney in your state.

Benefits of an 80 Lower Jig:

  • Each includes step-by-step instructions
  • Requires little to no mechanical knowledge
  • Compatible with most compact hand routers
  • Proudly made in the USA with a Lifetime Warranty
  • Reusable and modular – replacement parts available!
  • An affordable way to build quality AR-15 lowers repeatedly

 


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.