Trijicon Heavy Duty Night Sight Set Yellow Front Outline Springfield XD-S. The HD Night Sights were specifically created to address the needs of tactical shooters. The three dot green tritium night sight sets 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 acquisitioneven in transitional lighting. Additionally the front surface of the rear sight is steeply hooked to assist in emergency one-handed slide operation. Green tritium lamps are warranted for 12 years from date of manufacture. Professional installation recommended. Dimensions for reference only. Specifications for Trijicon Heavy Duty Night Sight Set Yellow Front Outline Springfield XD-S: Manufacturer: Trijicon Gun Make: Springfield Armory Gun Model: Springfield Armory XD-S Color: Yellow Green Front Sight Color: Green w/Yellow Outline Rear Sight Color: Green w/Black Outline Fabric/Material: Metal Front Material: Tritium/Paint Gun Type: Pistol Attachment Type: Professional installation recommended. Front Blade Height: 0.2 in Rear Blade Height: 0.218 in Features of Trijicon Heavy Duty Night Sight Set Yellow Front Outline Springfield XD-S: Springfield Package Contents: Trijicon Heavy Duty Night Sight Set Yellow Front Outline Springfield XD-S The Trijicon Heavy Duty Night Sights Yellow Front Outline Springfield XD-S SP102-C-600751 is a quality addition to the Trijicon lineup. For more great deals on Tritium Pistol Sights by Trijicon please browse our Trijicon Tritium & Fiber Optic Night Sights page. Fits Springfield XD-S Series.The HD Night Sights were specifically created to address the needs of tactical shooters. The three dot green tritium night sight sets 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 acquisitioneven in transitional lighting. Additionally the front surface of the rear sight is steeply hooked to assist in emergency one-handed slide operation.Green tritium lamps are warranted for 12 years from date of manufacture.Professional installation recommended. Dimensions for reference only. Features/Specifications: Springfield