Great sights - Trijicon H&K USP HD Night Sights

First time trying the orange HD and they are bright and pop for fast acquisition.i have a few firearms with the yellow HD and these are great as well .the yellow does hold its color a little longer with my eyes under darker lighting conditions but not by much . If you can’t decide on which one you can’t go wrong with either sight color. opticsplanet also had the best prices for them at the time of purchase.