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  • 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! With its steel plates and precision machining, the Elite Builder has been a favorite among AR-15 and AR9 80% builders. Now, we’ve included new plates to fit AR-10, LR-308 and .308 80% lowers! The EB...

    $239.98 - $351.96
  • 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 fast, accurate, bombproof 80% Lower Jig from Elite Builder now ships with equally high-quality drill bits and end mill bits. This gunsmithing combo kit allows you to confidently cut and drill multiple AR-15 and AR-9 80% lower receivers without losing...

    $169.99 - $279.99
  • Sale
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    Liberty 80% Lower Jig (AR-15/AR-9)

    You've heard the buzz over people building their own AR-15 rifles. Here's how they do it. They take one of any number of varieties of forged or billet 80% lowers, put it in a jig. A jig is basically a template for how the rest of the lower should be...

    $99.99 - $179.99
  • 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...

    MSRP: $119.99
    $89.99
  • 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 popular, affordable Elite Builder 80% Jig has been reconfigured to serve the ever-growing .308 AR market: Re-tooled to accept the DPMS-patterned LR-308 80% lowers, the Elite Builder Jig allows any shooter to part together an accurate, custom .308...

    $179.99 - $299.99
  • Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) 2 Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) 3 Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) 4 Broken Arms 80% Lower Jig - AR15/AR9 (With Tooling) 5

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

    You love building guns. By now, you no doubt know about building an AR from scratch using little more than a drill press. This is the kit you'll need to get it done: The Broken Arms 80% Jig is designed to eliminate the need for any sort of expensive...

    $279.99
  • Elite Builder 80% Lower Jig - AR-10 Patriot Upgrade

    Elite Builder 80% Lower Jig - AR-10 Patriot Upgrade

    These extra machining plates will convert your AR-15/AR9 Elite Builder Jig into the Elite Builder Patriot 80% Lower Jig.  If you want to invest in a new .308 or 6.5 Creedmoor build kit and you want to use your EB Jig to finish for yourself the...

    $59.99
  • stealth-arms-phantom-1911-80-jig-1 stealth-arms-phantom-1911-80-jig-2 stealth-arms-phantom-1911-80-jig-3 stealth-arms-phantom-1911-80-jig-4 stealth-arms-phantom-1911-80-jig-5

    Phantom 1911 80% Jig by Stealth Arms

    The 1911 Jig Overview: The 1911 Phantom Jig consists of three main pieces; 1 cutting “car” and 2 long side plates. Carbides cutters are used to remove the material from the frame, the Phantom Jig is the only jig that makes use of these...

    $199.95
  • Elite Builder 80% Lower Jig - AR-15 Patriot Upgrade

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

    These extra machining plates will convert your AR-10 Elite Builder Jig into the an Elite Builder Patriot 80% Lower Jig. The Patriot setup works with AR-10 / LR-308 80% lower receivers, too. If you want to invest in a new .223 of 5.56mm AR build kit and...

    $69.99
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Ready to build a gun from scratch? Build an AR-15, AR-10, 1911, Sig P320, or Glock®-compatible handgun with your own tools and know-how? Then you need an 80% lower jig. This is the tool you'll use to machine your AR's receiver blank or your new handgun's 80% frame.

Fabricating Your Firearm With a Jig

New to this project? Start here

Now that you have a basic understanding of the process, you know you need a quality, precise jig for accurately and affordably completing your receiver or frame. We offer 80% jigs that require little to no machining experience and only require basic tools -- a hand drill or drill press, a small vise, and other hand tools -- to successfully cut and drill your new firearm.

How AR-type 80% Jigs Work

All AR-type jigs (whether you're building an AR-15, AR9, or AR-10 in aluminum or polymer) work the same: Two side plates secure the 80% lower and various top plates provide the cutting templates for cutting out the fire control cavity for the trigger, hammer, sear, disconnector, safety lever, and springs. Each side plate also has pre-drilled pin hole guides for drilling the holes required to install your lower parts kit. The AR jigs we sell are designed to work a drill press or mini-mill.

Here's how to complete an 80% lower with a jig.

How 80% Frame Jigs Work

Handgun jigs each work a little differently. The 1911 jig provides a carbide cutting tool for completing the slide rails and barrel seat by hand, while the P320 and Polymer80 jigs provide a template for cutting the frame with a Dremel and cutting wheel. Hand files can be used for final fitment and polishing. All handgun jigs provide pin hole templates for drilling the frames to accept parts kits and trigger components.

Benefits of Using an 80% Jig

  • Completes a lower or frame in 15 minutes to 1 hour
  • Jigs include required drill bits and end mill bits for machining
  • All available 80% jigs are compatible with all available lowers and frames
  • Options are available for routers or drill presses, no complex machinery required
  • Replaceable parts are available so you can keep building more guns!
  • All jigs proudly made and assembled in the USA

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 confirm whether your state is restricted on our Shipping & Return Policy before placing an order. We cannot fulfill orders to restricted states if placed.

Your custom firearm build awaits.

 


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 GunBuilders.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.


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