GLOCK® Compatible Build Kit

GLOCK® Compatible Build Kit

Whether full-size, compact, or subcompact, GLOCK® handguns remain some of the most popular and trusted pistols carried by CCL permit holders, professional shooters, law enforcement, and military units across the globe. Designed with modular components and easy customization, it only makes sense that these GLOCK®-compatible pistol kits from Polymer80 have become so popular.

Kit Configurations & GLOCK® Compatibility

  • 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

What's Included

  • 80% pistol frame and jig kit
  • Front- and rear-cut slide
  • Gen3-compatible barrel
  • Factory slide parts kit
  • Factory frame parts kit
  • Front and rear glow sights
  • FREE portable handgun lock box

Kit Features & Upgrades

416R Stainless Barrel. The barrel included with each kit is precisely forged and cut from Crucible 416R stainless, one of the best gun steels available on the market. Featuring a 1:10 twist rate with 11-degree target crown and nitride treatment, your barrel will provide superior accuracy, wear, and lifespan.

17-4 PH Stainless Slide. Nitride- and heat-treated to obtain a hardness rating of 41-44 on the Rockwell C scale, your front- and rear-cut slide provides ergonomics, better control, and complete protection from corrosion and rust in the most unforgiving environments. Included open-leaf glow sights provide optimal sight picture in day and night conditions, making this slide perfect for the range, competition, and concealed carry.

Factory-spec parts kits. GLOCK® components are the most reliable, so it only makes sense to outfit each with kit 100% factory-spec parts, ensuring your build can be assembled without a hitch and will function with completely dependability for thousands of rounds.

Polymer 80% frame. The included frame blank affords top-tier components including a stainless steel locking block rail system and drop-in rear rail module, with an optional Picatinny accessory rail for a light or laser. To improve control and felt recoil, these frames feature an 18-degree grip angle, improving the factory GLOCK®'s 22-degree grip angle.

Completing the Frame for Assembly

Your pistol kit includes easy-to-follow instructions for setting up the frame and jig, and using the included bits to machine the frame, making it ready for final assembly. To get a better idea of the steps involved, see our visual guide detailing how to cut and drill the frame.

Building Your Pistol: Federal vs. State Law

Under federal law, it is legal to build a firearm from scratch for personal use without a license. You don't need to visit an FFL, nor do you need to conduct a background. The ATF confirms these rights. No components in the GLOCK® pistol kit are considered a firearm, so your kit ships directly to you in most cases.

Some states have banned 80% lowers and certain firearm parts, or have otherwise restricted the sale and ownership of products we sell. So, be sure to check your local and state laws. We can’t ship our products to certain states. Please check our Shipping & Return Policy before placing an order (see restrictions).


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.

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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, 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.