If you want a heavier trigger, you no longer have to mess with the insides of the Glock:

The product is called Safe-Draw, and it’s available for $7 on their website.

Safe-draw-glock-trigger-weightIf it works, and people are looking for that type of thing then great!  Having extraneous stuff hanging on the outside of a weapon you’re betting your life on is rarely a good idea if you ask me.  For $7 you can’t really go wrong though if you just want to “try out” a few different weights before deciding on one and replacing the internals I’d say.