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

The XS Sights R3D 2.0 Night Sights deliver a traditional, bright 3-dot tritium sight picture purpose-built for the Glock 42, 43, 43X, and 48 slim-frame pistol platform. Designed for defensive carry and everyday use, this drop-in set is a direct-fit upgrade over factory iron sights.

The square front sight pairs a green tritium lamp with a high-contrast green outline ring, producing a fast, clearly defined aiming reference in daylight or darkness. The matching notch rear sight uses green tritium lamps and a serrated, blacked-out rear blade to cut glare and drive the shooter's focus to the front sight.

Both front and rear are CNC machined from steel and finished in a durable black coating for long service life under hard use. XS Sights' EasyPress design lets these sights install without filing, hammering, or fitting; they press straight into the factory dovetails.

As part of the R3D 2.0 family, this set delivers up to 50% brighter rear tritium compared to the original R3D for an even more visible low-light sight picture. The classic 3-dot, notch-and-post layout keeps the sight picture familiar while dramatically improving low-light performance over factory Glock sights.

Fitment: Glock 42, Glock 43, Glock 43X, Glock 48.