I purchased my first Glock (G19) about 2 months ago. It has the factory night sights installed. The sights are OK, but there is not much daylight on each side when the front sight is centered to the rear. My current intentions are for this Glock to be my "all in one" handgun. (home defense, target, IDPA and CCW). I have a few questions about the sights. It seems like the factory night sights would be good for home defense and CCW. Are the factory nights sights good enough for decent IDPA? I am thinking for IDPA, I would prefer a black rear with fiber optic front and some more daylight. What is a good sight combination for IDPA? If you have a link that you can attach, that would be great. I have never removed or installed Glock sights. I have only watched a couple videos. If I remove the factory front night sight, is it ruined or can it be re-used. It appears that it is a compression fit. My understanding is that aftermarket front sights will have a small hex nut to attach the sight. Will my slide accept this style? It almost seems like there is not enough clearance to the barrell. Thanks for any help.