Night Fision Accur8 Student Gun Night Sight Set Glock 42/43/43x Yellow Front One-Dot Rear Black. Like all night sights Night Fision uses self-illuminating Tritium to get the ''always on'' glow that makes them so effective. Night Fision sights have 30percent more Tritium than most sights on the market. The Tritium insert isn't surrounded by a painted-on ring but rather one made of a daylight fluorescing material that produces optimum visibility in daylight. The Night Fision Accur8 sights were designed in collaboration with Paul Markel and Student of the Gun. Accur8 sights are engineered to be the least complicated system a shooter needs to align sights the Accur8 sights cut out the extra dot and extra processing time for most shooters. Accur8 sights have a point of aim/point of impact at a defensive distance of 15 yards and feature a front sight dot that is designed to be brighter than the rear to avoid confusion when the lighting conditions are low. Specifications for Night Fision Accur8 Student Gun Night Sight Set: Manufacturer: Night Fision Color: Black Rear Sight Color: Black Sight Style: OEM Height Fabric/Material: High Quality 4140 Steel Gun Type: Pistol Illumination Type: Tritium Illumination Color: Green Features of Night Fision Accur8 Student Gun Night Sight Set Perfect Dot Night Sights with added daytime florescent or phosphorescent ring New Updated Serrated Sight Body Brightest Tritium Night Sights on the market CNC Machined out of high quality steel Black Nitride coating used to improve wear and corrosion resistance Installation: Gunsmith Recommended for Installation Information please review Night Fision Install Guide Package Contents: Night Fision Accur8 Student Gun Night Sight Set Night Fision GLK-003-015-YGZG: Accur8 Student Gun Night Sight Set Glock 42/43/43x Yellow Front One-Dot Rear Black