Trijicon Ruger Sr9, 9C, 40, 40C, Nigh Sight Set is a part of the high quality and dependable Illuminated Night Sights from Trijicon. All of the features you need for a price you want. Illuminated Night Sights from Trijicon are well known for their quality and Trijicon Ruger Sr9, 9C, 40, 40C, Nigh Sight Set upholds that standard.