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Glock® Compatible 19 Gen 4 Lower Parts Kit

Usually ships the same day or the next business day!
Was: $89.99
Now: $74.99

We take factory Glock® compatible 19 pistols and completely mod and customize them. In the same way the AR-15 is the most adaptable rifle in the world, the Glock® compatible pistol is the most adaptable handgun. However, the vast majority of the parts out there are for gen 3 Glock® compatible pistols.

But building one's own gen 4 Glock® compatible 19 is coming up in a big way. Now you need a compatible lower parts kit to get on with your build. That's why we're bringing you this lower parts kit for your Glock® 19 compatible gen 4 frame.

This lower parts kit includes everything you need. It's got all the necessary parts to get your frame up and running so you can continue your build. See below for additional details.

PLEASE NOTE: this LPK is only compatible with Gen 4 Glock® 19 frames and the LWD Freedom Wolf 80% frame. It will not work with Polymer80 products because they are Gen 3 frames.

What's Included:

  • Lone Wolf Trigger Bar G17,19,22,23,24,26,27,31,32,33,34,35,37,38,39
  • LWD Polymer Trigger Shoe, Black (Bare Trigger Shoe)
  • LWD Extended Slide Stop 3 Pin
  • LWD Extended Slide Lock Lever Black
  • LWD Connector 3.5 lb
  • LWD Trigger Spring 6 lb
  • LWD Trigger Pin
  • LWD Locking Block Pin
  • LWD-Trigger Housing Pin (Black)
  • LWD Universal Trigger Housing (For GEN4 usage)
  • LWD Mag Catch Spring
  • LWD Magazine Catch Extended
  • LWD Slide Lock Spring 19,23,32,38
  • LWD Locking Block M/19,23,32,38
  • LWD 40 Bare Ejector
  • Gen4 9mm Ejector
  • Glock GEN3 9mm Trigger Housing (included by default, not used in GEN4)

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

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:

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

Lone Wolf Distributors
GLOCK® Compatible

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.