One thing I noticed with both Sigs. Perhaps it's me with my crappy 57 year old eyes, but for some reason the Sig night sights just seem to be a lot brighter than my Glocks. It could be the Sigs are a bit newer, as they do lose intensity with age. But even next to my Glock 30 which is my newest, the Sig's come off as much more brilliant. Better charged gas cylinders perhaps? Anyway, they really stand out. Bill T.