Our Standard Height Sights are made to upgrade directly from your handgun manufacturer’s sights to a high quality, engineered night sight. Like all our night sights, they carry our patented domed lenses that collimate the emitted light from our substantial tritium vials. Those vials are housed in ballistic polymer that is impregnated with fluorescent or phosphorescent pigment for a multi-tasking, bright daytime ring. Standard height sights are offered in a variety of combinations, and are meant as the singular sighting system on the handgun.