XS Sight Systems R3D Night Sight for Glock 17/19/22-24/26/27/31-36/38 - Suppressor Height - Green Tritium

The XS Sight Systems R3D Night Sight brings a self-illuminated 3-dot tritium sight picture to Glock pistols, with green glowing inserts in both the front and rear for fast target acquisition in low-light and no-light conditions. Built around a traditional notch-and-post layout, this set uses XS Sights' Ember Glow Dot Technology on the front sight, which absorbs ambient light and produces a bright, battery-free aiming reference around the clock.

Configured at suppressor height, the R3D is set up to co-witness with a slide-mounted red dot optic and provides the additional clearance needed behind a sound suppressor or on threaded-barrel Glock builds. The blacked-out rear sight body reduces reflected glare and increases contrast against the front post, helping the eye lock onto the front dot quickly under stress.

This set fits a wide range of Glock pistols in Gen 1 through Gen 5, including the G17, G19, G22, G23, G24, G26, G27, G31, G32, G33, G34, G35, G36, and G38. Each set ships ready as a drop-in upgrade on duty, concealed carry, and home-defense Glocks that need a dependable aiming point day or night.