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11 of 11 Items
11 of 11 Items

GLOCK®-compatible 80% frames provide the same size, specifications, and dimensions as a factory GLOCK® pistol frame. Requiring minor fabrication with some hand tools to make it ready for assembly, the 80% frame is not legally considered a firearm under federal law. The listed jigs provide the tools and templates required for cutting and drilling the frame, allowing you to install factory or aftermarket GLOCK® components -- a barrel, slide, sights, trigger and parts kits -- to complete your build.

How The Frame and Jig Work

Your jig ships to your front door, just like any other online purchase. Once received, you'll use the jig to fabricate your 80% frame. A set of drill bits and end mill bits are provided to complete all necessary steps.  The jig works by securing the frame and illustrating where and how to cut and drill. Easy-to-follow instructions guide you along the way, and no experience or familiarity with firearm frames or the GLOCK® platform is required!

The following tools are require:

  • Handheld drill
  • Bench-top vise
  • Dremel, snips, or files
  • *Drill press (optional)

*The frame can be cut and finished with snips, and flat and round hand files, though each kit includes an HSS end mill. Unlike aluminum 80% lowers, you can safely cut the polymer 80% frame by gently milling with a drill press and the end mill.

Frame, Jig, and GLOCK® Compatibility

With your frame fabricated and both the rail system and rear rail module installed, all that's left is to pair up your frame with your favorite GLOCK components. All available 80% frame maintain the same fittings and size specifications, ensuring retail parts compatibility. To ensure you're pairing the right frame blank with your favorite GLOCK model, reference the compatibility list below:

  • PF940C is compatible with G19, G23, and G32
  • PF940v2 is compatible with G17, G22, G24, G31, G34, and G35
  • PF940SC is compatible with G26, G27

Not a Handgun Under Federal Law

These un-finished 80% pistol frames are not considered handguns or firearms under federal law, nor does the ATF consider them firearms. Because they are not functional, they can be shipped like any other product to most states. They do not require an FFL, background check, transfer fee, or other special taxes or paperwork.

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.


DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 80 Percent Lowers, a/k/a Tactical Gear Heads, LLC nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit

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, 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.