XS Sight Systems R3D 2.0 Night Sights for Glock 20/21/29/30/30S/37/40/41 Green Front with Black Rear SPECIFICATIONS BRAND: XS SIGHT SYSTEMS CA PROP 65: YES GUN SIGHT FRONT CONFIG: GREEN GUN SIGHT REAR CONFIG: BLACK GUN SIGHT WEAPON FIT: GLOCK 20 21 29 30 30S 37 41 DESCRIPTION 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 20, 21, 29, 30, 30S, 37, 40, & 41