Meprolight Highly Visible Day/Night Self-illuminated Sight Fixed Set Smith&Wesson M&P Shield Front Green Rear Green Orange Notch 0. Shooters can select fromone of three colors Green Yellow or Orangefor the frontsight. The tritium is illuminated green to provide low-light and nighttime aiming capabilities. The contrast in colors of thetwo components helps the shooter focus on the front sight quicker which is critical in defensive and competitive shooting. Specifications for Meprolight Highly Visible Day/Night Self-illuminated Sights: Manufacturer: Meprolight Color: Black Sight Style: U-Notch Fabric/Material: Metal Gun Type: Handgun Illumination Type: Tritium Features of Meprolight Highly Visible Day/Night Self-illuminated Sights Large and colored front sight ring The Brightest Tritium night sights Available for various handgun models Package Contents: Meprolight Highly Visible Day/Night Self-illuminated Sights Meprolight 417703131: Highly Visible Day/Night Self-illuminated Sight Fixed Set Smith&Wesson M&P Shield Front Green Rear Green Orange Notch 0417703131