AmeriGlo i-Dot Night Sight for S&W M&P Shield

i-Dot Night Sight Features AmeriGlo s i-Dot sights use a dot over dot configuration. It features a single green dot Tritium front sight with a white outline (.125 wide) and a green single dot Tritium (no outline) with a .180 squared rear notch. The rear extends to end of slide for an increased sight radius and has an under-cut face to eliminate glare. AmeriGlo sights are machined from US-made bar stock steels and assembled using Swiss-made Tritium light sources. i-Dot Night Sight Specifications Model:i-Dot Series:Night Sight Firearm Fit:S&W M&P Shield Rear Color:Green Style:Set Frame Color:Black Frame Material:Steel Front Color:Green w / White Outline Front Material:Tritium Rear Material:Tritium