I purchased this Glock 19 Gen5 FS New and knew I was going to put a set of Trijicon night sights on it. Thanks to Guidefitter, I was able to save a substantial amount of money and put the Bright & Tough front and rear sights on it. I love that they have the white ring around the green tritium tube for daylight shooting. They glow at night like none I have ever owed in the past. Very happy with the purchase and they are very shooter friendly.