LiteWave H3 sight combines Tritium with the HIVIZ Litepipe technology for 24 illumination. Now you can have the advantage of day and night performance all in one sight system. All steel construction sight sets are rugged and durable, designed for the roughest use, whether it is personal defense and protection, Law Enforcement or Military. The new LiteWave H3 ensures fast sight acquisition and a bright sight picture day or night.Features:Fits M&P shield in all calibers, does not fit CORE, M&P 22 or M&P long slide modelsSight visibility in all light conditionsUltra bright encapsulated TritiumFactory sight heightsAll steel constructionFits standard holstersPatented technology