XS Sights Big Dot Tritium, Front Sight, Fits Smith & Wesson J-Frames and Ruger SP101 with pinned front sights, Green with White Outline RV-0001N-3
Specifications:

Type	Tritium Front
Frame Material
Frame Color	Black
Firearm Fit	S&W J-Frame;Ruger SP101
Base Configuration
Style	Tritium Front
Front Material	Tritium
Rear Material
Front Color	Green Tritium w/White Outline
Rear Color
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter
Firearm Type	Handgun