These hd night sights were specifically created to address the needs of tactical shooters.Its three dot green tritium night sight set's front sight features a taller blade and an aiming point ringed in photoluminescent paint while the rear sight is outlined in black and features a wider u-shaped notch.This unique configuration increases visibility and quickens front sight acquisition even in transitional lighting.Additionally the front surface of the rear sight is steeply hooked to assist in emergency one-handed slide operation.Rear Color: Green w/White OutlineType: Tritium Front/Black RearFrame Material: MetalFrame Color: BlackFirearm Fit: Springfield XD-SStyle: 3 DotFront Material: Tritium/PaintRear Material: TritiumFront Color: Green Tritium w/Yellow OutlineFirearm Type: Handgun