The HiViz LiteWave H3 Sight Set for Glock 21 is a high-performance sight system designed for optimal visibility in any lighting condition. This set features a tritium front sight with a green glow and a white outline for easy targeting complemented by a fiber optic rear sight in vibrant orange. Constructed from durable steel this sight set is built to withstand the demands of personal defense law enforcement and military use. With its dovetail base configuration it offers a seamless fit for all generations of Glock 21 models excluding the 42 43X 48 and 43. The LiteWave H3 technology ensures quick sight acquisition and a bright sight picture whether in daylight or complete darkness making it an essential upgrade for your pistol.