Features: Tritium front and rear with high contrast glow dot Photoluminescent glow dot absorbs ambient light and glows in low light Wide notch rear with serrations and anti-reflective lens Corrosion resistant Black Nitride surface finish Traditional 3-dot tritium, notch and post, sight picture Compatible with Glocks Gen 1-5, including MOS models Proudly manufactured in Fort Worth, TX Fits Glock Suppressor/RMR Height 42, 43, 43X, & 48