The K6s 3-Dot Night Sight system offers the user the same features as our 3-Dot Sight system (4000152) with the added benefit of low-light sighting capabilities. These sights utilize light emitting Tritium which does not require charging or exposure to sunlight to work, and are the ideal choice for concealed carry and home defense purposes. Compatible will all K6s revolver models, the rear sight is windage adjustable with a set screw lock and the front sight requires drilling and pinning. Not compatible with K6xs. *Minor Gunsmithing / Drilling is Required ML11231