One of the first things most people do to a factory Glock is smooth out the trigger with a 3.5 connector. This cleans up the pull and makes it easier to break a shot without moving the sights.
This cones standard on the competition models (G-34, G-35 and G-41) but don’t come on duty guns. There is a good reason for this, safety is compromised with a lighter trigger and working guns need a heavier trigger.
If you don’t use your gun at work or for self defense, a lighter trigger will make you a little faster on the range.
Glock doesn’t sell OEM 3.5 trigger connectors except for competition guns. There is a sound reason for this, change this part thoughtfully.
Photo courtesy of ammoland.com