Trijicon HD XR Night Sights for Springfield XD XDM, Orange - SP601-C-600871Traditional iron sights are often ineffective in low-light situations, so we did something about that. Trijicon iron sights for SIG Sauer pistols excel in a wide range of lighting conditions (including low light) and are built with our legendary durability to handle whatever comes their way. Take advantage of superior technology for aiming solutions you can trust.