Perfect Dot NS Set w/Yellow Front Dot + U Blank Rear for Glock 17-39

The Night Fision Perfect Dot Tritium night sight provides maximum visibility both day and night. Their patent-pending injection molded sleeve design not only holds the tritium vial securely in place, it creates a brighter and more durable ring. For Glock 17, 17L, 19, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 37, 38, 39.Perfect Dot Night Sights with added daytime florescenceOne of the brightest Tritium Night Sights on the marketCNC Machined out of high quality 4140 steelBlack Nitride coating used to improve wear and corrosion resistanceInstallation: Contact Professional GunsmithBuilt in the USA with Swiss Tritium