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Glock® 21 Compatible Upper Parts Kit

SKU:
UPK-G21
Availability:
Usually ships the same day or the next business day!
$104.99
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Building a custom G21 or PF45 slide? You need this slide parts kit.

Ready to build a custom GLOCK® slide for your Gen 3 pistol or Polymer80 build? You need to pair it with a parts kit like this one. We've got your PF45 build (or factory GLOCK® 21) covered with a quality, OEM-style slide parts kit.

NOTE: this GLOCK® compatible upper parts kit does NOT include sights or a barrel. These are personal choices, so we left it up to you.

What's Included:

  • Firing pin
  • Firing pin spring
  • Firing pin spring cup
  • Firing pin safety
  • Firing pin safety spring
  • 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

 


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 GunBuilders.com 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 www.glock.com. 

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.

GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Platform:
GLOCK® Compatible
Caliber:
.45
Size:
Full
Model:
G21

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.