XS Sight Systems R3D Night Sights for Glock Suppressor 171922-24262731-3638 Green. The blacked out rear increases contrast against the front sight. Available in orange or green the front sight ring is equipped with our Ember Glow Dot Technology which absorbs ambient light and glows in low light. R3D sights are the brightest options for fast and accurate shooting in bright and low light. Green is the best option for low light and has the brightest glow intensity. Orange contrasts the best in bright light settings while still maintains visibility in low light. The front sight tritium lamp is brighter than the 2 rear sight lamps reducing the possibility of mixing up the front sight tritium vial with a rear sight vial in low/no light. The front blade measures 0.145in (3.68 mm) wide and the rear notch is 0.170in (4.32 mm) wide which increases the visibility of the front sight. R3D sights are installable by sight pusher tools or by using a hammer and punch. Fits Glock models 17 19 22 23 24 26 27 31 32 33 34 35 & 36. Suppressor Height and lower third co-witnesses with Glock factory cut and RMR. Specifications for XS Sight Systems R3D Night Sights for Glock Suppressor 171922-24262731-3638: Manufacturer: XS Sight Systems Gun Make: Glock Gun Model: Glock 31 Glock 24 Glock 33 Glock 26 Glock 27 Glock 34 Glock 36 Glock 19 Glock 23 Glock 17 Glock 22 Glock 35 Glock 38 Glock 32 Color: Black Rear Sight Color: Black Fabric/Material: Steel Gun Type: Pistol Illumination Type: Tritium Condition: New Last Chance: Yes Finish: Blued Features of Xs Sight Systems Xs R3d Glock 171922-2426 2731-3638 Suprsr 3dot Green Steel sight with blued finish; Green tritium front and rear; Green photoluminescent ring front; Snag-free design; No Questions Asked Warranty Package Contents: XS Sight Systems R3D Night Sights for Glock Suppressor 171922-24262731-3638 XS Sight Systems GL-R021P-6G: R3D Night Sights for Glock Suppressor 171922-24262731-3638 Green