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30 of 30 Items
30 of 30 Items

Finish assembling your Polymer 80 frame, or upgrade your GLOCK®'s trigger and internals.

These GLOCK® lower part kits are designed for P80 and factory GLOCK® handguns of various series. Each frame parts kit comes with all fire control components, including a trigger, all safety mechanisms, springs, pins, and other parts necessary for assembling your Polymer80 frame or GLOCK® frame. Want to upgrade your existing pistol, or customize a kit you're buying? We've got you covered with improved trigger connectors and trigger springs that provide a better trigger pull and more tactile feedback for improved accuracy.

Lower Parts Kit: What's Included

  • Trigger with trigger bar
  • Trigger housing, ejector pre-installed
  • Trigger spring
  • Connector
  • Slide stop release
  • Slide stop release spring
  • Magazine release
  • Magazine release spring
  • Slide lock
  • Slide lock spring
  • Trigger housing pin
  • Trigger pin

State Laws Vary

Some states have banned certain firearm parts, and other products we sell. We cannot fulfill orders for any products to those states. Check your local and state laws, and please confirm whether we can ship to your state before ordering.


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.

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 Gun Builders Depot, a/k/a 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

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.