XS Sights R3D 2.0 Night Sights for Glock 42/43/43X/48 - Green Tritium Orange Outline Front / Green Tritium Rear

The XS Sights R3D 2.0 Night Sights are a defensive-grade 3-dot tritium sight set designed specifically for slim-frame Glock pistols. Precision-machined from CNC steel and finished in black, this front/rear set gives your Glock 42, 43, 43X, or 48 a traditional notch and post sight picture optimized for fast, intuitive acquisition in low light and high-stress situations.

The square front sight carries a green tritium lamp wrapped in a bright orange outline ring, so the aiming reference snaps into view even in daylight. The wide-notch rear sight uses two green tritium lamps that run brighter than the standard R3D, paired with a blacked-out rear blade that increases contrast against the front post and pulls your eye directly to the dot. The wider rear notch also leaves more visibility on either side of the front post for faster alignment in poor lighting.

Built for everyday carry and defensive use, the R3D 2.0 uses XS Sights' EasyPress installation design so the sights drop into the factory dovetail without filing or hammering. The photoluminescent front ring absorbs ambient light and keeps glowing in low-light conditions, giving you a reliable aiming reference any time the lights go down.