Looking to upgrade my full service 9. Wanting to change the sights to night sights but not sure which ones. I picked up a gen 4 Glock 23 and I like the reset on that trigger better then the xd but I like how weight if the xd better. So I have thought about changing out the trigger. Please any recommendations would be appreciated. If there is anything else I should look at upgrading please let me know. I have yet to change out the striker pin going through the slide. Appreciate any suggestions. I have a open mind.