Orders ship within 24 hours or by the next business day!

phone: 888-310-0284
3 of 3 Items
  • Sale
    ljs-80-lower-jig-with-tooling-ar-15-ar-9-1 ljs-80-lower-jig-with-tooling-ar-15-ar-9-2 ljs-80-lower-jig-with-tooling-ar-15-ar-9-3 ljs-80-lower-jig-with-tooling-ar-15-ar-9-4 ljs-80-lower-jig-with-tooling-ar-15-ar-9-5

    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...

    $89.99 - $169.99
  • 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! 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...

    $209.99 - $319.99
  • 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...

3 of 3 Items

Precisely machine your AR9 80% lower with the right tools and jig.

Completing your AR9 or 9mm PCC build means getting the 80% lower cut and drilled just right. These new receiver blanks work with AR-15 lower parts kits, though their external shape and dimensions differ slightly because of their proprietary design and smaller, Glock-compatible mag well. To ensure proper fitment and cutting of the fire control cavity for the LPK, it is recommended you select one of the AR9 jigs above. Each jig includes the necessary tooling (drill bits and end mill bits) to complete your lower for final assembly.

First time building a PCC? Here's the AR9 Build & Ballistics Guide.

AR-9 Jigs Include Bits Required for Machining

We strive to keep costs low for every "from-scratch" AR build, and the AR9 is no different. If you want to complete your receiver blank on a budget (without sacrificing quality) stick with the Universal Polymer 80% AR-15/AR9 Jig. At around the $50 price point, you get all the cutting and drilling templates required, plus quality HSS bits for precision results.

Or, if you're the shooter who wants to build multiple ARs in the future (who doesn't?) consider the bomb-proof AR15/AR9 Elite Builder Jig. Made from hardened steel plates with high-speed drill bushings, this lower's capable of spitting out numerous forged or billet lowers for the AR9 and AR-15 and also includes all the required bits for completing your receiver.

View our visual instructions for how to complete your 80% lower receiver.

What's Included

Regardless of which jig you select, you'll receive all the necessary tooling for completing your 80% lower:

  • (1) 5/16 Drill Bit
  • (1) 3/8 Drill Bit
  • (1) 5/32 Drill Bit
  • (1) Center-Cut HSS End Mill
  • (2) Side Plates w/ Drill Templates
  • (3) Top Plates for Fire Control Cavity

Recommended Tools & Accessories

To ensure your workstation is properly equipped for cutting and drilling your receiver blank, we strongly recommend investing in the following:

  • Bench-top vise for securing jig/receiver
  • Tabletop drill press (1,850 - 2,250 RPM)
  • Digital Calipers to verify measurements
  • Bubble level for leveling jig and receiver
  • Round machinist file to clean burs and edges

State Laws May Vary

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 from-scratch AR9 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.

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.