I have been looking around for a 30s for a while and I picked one up today. I blasted 100 rounds of FMJ and it seems to be pretty good. Questions....

Does anyone know if there is anything special about the Night Sights? I would like Some Ameriglo Operators/troopers or HDs but I don't want to order anything if there is slide width weirdness (seeing as it has a 36 slide). I don't think there is but the guy at the gunshop said there was so I want to make sure before I spend $100

What is a good, thin IWB holster that fits it properly? I am running it in a OWB leather backed Glaco OWB that is OK, but I think this thing would be a decent IWB with a thin holster.