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 Glock Suppressor/RMR Height 17, 19 ,22, 23, 24, 26, 28, 27, 31, 32, 33, 34, 35, 36, 38, 39, 45, & 47