Picked up a 19 mos and I am planning on putting a vortex viper on it. As this will be a carry gun I need to put suppressor night sights on as a back up. I am looking at trijicon but am open to other options. I just want to make sure they are high enough to use if the dot goes down. Also interested in opinions on whether to go with white outline on the front or not. For the back I am planning to go with just the vials, no outline.