Ameriglo Green Tritium 2-Dot w/White Outlines .27"H .165" Sq Notch #10 Rear Sight for Most Sig/Springfield Models, Hellcat (non OSP) XD-191R

This rear sight is compatible with the majority of Sig Sauer and Springfield handguns (including the non-OSP Hellcat). It features tritium lamps with a white outlines, greatly enhancing accuracy and target acquisition in low light environments.