Night Fision Perfect Dot Night Sight Set w/Orange Front U Black Rear w/Green Tritium Glock 17/17L/19/22-28/31-35/37-39. TheseTritium Pistol Sights by Night Fision are CNC-machined rom rugged steel with a nitride coating that improves their resistance to corrosion. The tritium vials in this Night Fision Perfect Dot Pistol Night Sight Set U Rear Glock are secured in an injection-molded sleeve for protection and they provide a glowing point of aim without the need for batteries or an external power source. Improve your aim by equipping your handgun with these Night Fision Perfect Dot Tritium Night Sights for Glock U Rear. Specifications for Night Fision Perfect Dot Night Sight Set U Rear Glock: Manufacturer: Night Fision Gun Make: Glock Color: Black Sight Style: OEM Height Illumination Type: Tritium Illumination Color: Green Additional Features: U Rear Finish: Polymer Features of Night Fision Perfect Dot Night Sights: Perfect Dot Night Sights with added daytime florescence. Brightest Tritium Night Sights on the market. CNC Machined out of high quality 4140 steel. Black Nitride coating used to improve wear and corrosion resistance. Installation: Contact Professional Gunsmith Maximum nighttime visibility through the use of tritium self-powered illumination. Brighter than leading competitors through use of 30percent more tritium. Scientifically engineered colorants in the Perfect Dot provide optimal visibility in daylight. Unparalleled durability. Innovative Perfect Dot provides a consistent brilliant outline that won't flake chip or wear over time. Package Contents: Night Fision Perfect Dot Night Sight Set w/Front U Rear Pistol Sights Night Fision GLK-001-007-OGZG: Perfect Dot Night Sight Set w/Orange Front U Black Rear w/Green Tritium Glock 17/17L/19/22-28/31-35/37-39