The most discernable shooters in the world from law enforcement to personal protection want improved accuracy and precision in any light. This is why they look to Trijicon HD Night Sights. Trijicon HD Night Sights are self-luminous, three-dot night sights that feature a highly visible photoluminescent paint outline, and 2X brighter domed sapphire/tritium front sight to quicken sight acquisition. The ,U, notch rear sight is angled and serrated to reduce glare and aid in front-sight focus.