The HIVIZ FastDot H3 Tritium/Fiber-Optic Sight Set is the most innovative sight on the market designed for those who need a reliable sight that is bright, easy to acquire, and fast when you need it most. This unique, low-profile single dot sight system combines fiber-optic and tritium for 24-hour illumination. Leave behind the batteries and the bulk; stay on target with the FastDot H3! FeaturesBrightest, fully encapsulated Tritium24-hour illuminationMounts like traditional sight setsFits standard holstersLitePipes: Red front / Green rear