The Ameriglo Serrated Green Tritium 2-Dot with Black Outline .270" H .165" Square #10 Notch Rear Sight is designed to fit most SIG Sauer and Springfield XD models, including the Hellcat (non OSP). Featuring green tritium inserts with black outlines, this rear sight provides excellent visibility in low-light conditions. The serrated finish reduces glare, while the .270-inch height and .165-inch square notch offer a clear and precise sight picture. Ideal for self-defense and tactical applications, this rear sight ensures reliable performance and enhanced accuracy. Ameriglo Serrated Grn Trit 2-Dot w/BLK OTL .270" H .165" Sq #10 Notch Rear Sight for SIG/Sprgfld Most SIG and XD Models and Hellcat (non OSP) XD-875R