Tritium Rear Sight for Smith & Wesson® Green Tritium single dot No Outline .165 Sq Notch"
Fits Smith & Wesson M&P (excludes .22, .380, Shield, EZ, Pro, C.O.R.E. and Equalizer)
Rear sight with two tritium lamps and white outlines
Rear sight with round notch, two green tritium lamps with white outline
Rear sight with two tritium lamps and black outlines