XS Standard Dot Tritium Sights are the finest sights made for fast sight acquisition in all light conditions. Day-Light Half-Light or Low-Light just "dot the i". Fast simple and effective. This is the ultimate self defense sight system that provides sights you can see around the clock.
   
Enhances sight acquisition in all light conditions
Ultimate "Flash Sight" picture 
Excels in high stress defensive situations
Improves Low-Light accuracy 
Low profile snag free design
Available with Big Dot Tritium or Standard Dot Tritium front sight 
Trijicon Tritium vials 
Precision machined in Fort Worth TX