The connector is the angled leaf in the trigger mechanism housing that sets how the trigger breaks. Swapping the standard connector for a 3.5 lb unit, usually alongside a matched spring set, is the cheapest meaningful change you can make to how a Glock trigger feels.
How fitment works
Connectors are generation-specific. Gen 5 revised the trigger mechanism, so Gen 1–4 connectors do not carry over. Spring kits are typically sold as a set — trigger spring, firing pin spring and safety plunger spring — because changing one in isolation shifts the balance the others were designed around.
Fitment chart
| Glock model & generation | Part | Notes |
|---|---|---|
| Glock 17 Gen 3 | View part | |
| Glock 17 Gen 4 | View part | |
| Glock 19 Gen 4 | View part | |
| Glock 19 Gen 5 | View part | |
| Glock 19X Gen 4 | View part | |
| Glock 19X Gen 5 | View part | |
| Glock 21 Gen 4 | View part | |
| Glock 22 Gen 3 | View part | |
| Glock 22 Gen 5 | View part | |
| Glock 23 Gen 4 | View part | |
| Glock 26 Gen 3 | View part | |
| Glock 26 Gen 4 | View part | |
| Glock 45 Gen 3 | View part | |
| Glock 45 Gen 5 | View part |
Choosing and fitting
Understand what a lighter connector actually does: it reduces pull weight, it does not remove the trigger safety. Anything fitted to a defensive pistol should be function-tested extensively, including a drop-safety check and a full magazine of the ammunition you carry. If you are not confident stripping the trigger housing, have an armourer fit it.