Meprolight 3-Dot Springfield XD 45 ACP Black Day/Night Sights - Green/Green - Meprolight combat proven self-illuminated night sights enable you to hit stationary or moving targets under low-light conditions with dramatically increased hit probability. Test results by marksmen and journeymen level shooters have shown an increase of over 85% in hit efficiency, using MEPROLIGHT self-illuminated. No Batteries Or Switches Always Ready When You Need Them Daytime Confidence Under Low Light Conditions Totally Integrated Day/Night Sighting