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29 of 29 Items

Build a custom GLOCK®-compatible slide with one convenient kit!

Ready to finish that Polymer80 frame you fabricated? Want an upgraded slide that looks great and shoots even better? Check out our GLOCK® complete slide kits. Each kit includes OEM or better components, plus custom slides with optional red dot optic cuts and threaded carbon or stainless barrels, ready for a compensator or can.

GLOCK® Slide Kit: What's Included

  • Firing pin
  • Firing pin spring
  • Firing pin spring cup
  • Firing pin safety
  • Firing pin safety spring
  • 9mm Extractor
  • Extractor depressor plunger
  • Extractor depressor plunger spring
  • Channel liner
  • Spacer Sleeve
  • Steel cover plate
  • Polymer guide rod (guide rod, washer, screw)
  • Guide rod spring

All kit slides are cut for factory GLOCK® iron sights, sold separately. Grabbing an optic-cut and drilled slide? Pair it with a micro red dot (available here).

Slide Kits & GLOCK® Compatibility

Our custom slide kits are compatible with Polymer80 frames and Gen 1 to Gen 3 factory GLOCK® frames. A Gen 3 slide will not fit a current (Gen 5) GLOCK® frame. We've tested this intercompatibility and found clearance issues when attempting to seat a Gen 3 slide on a Gen 5 GLOCK® 19 frame.

Learn More: Gen 3 vs Gen 5 Slides: What's Different?

Easy to Assemble (Follow Our Instructions!)

Assembling your custom GLOCK slide is easy. You only need a few, simple tools: A channel liner install tool, punch set, and small gunsmith hammer (tools available here). Assembly takes as little as 15 minutes and is easily accomplished by first-timers.

Use our written slide assembly instructions, or watch our how-to video!

Your custom slide awaits. Need help picking the right slide kit? Call us!

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 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.