XS Sights R3D Night Sights for Glock 42/43/43X/48 3-Dot Green Tritium

Upgrade your Glock's sight picture with the XS Sights R3D Night Sights, a battery-free 3-dot tritium sight set built specifically for Glock 42, 43, 43X, and 48 subcompact pistols. The R3D uses a traditional notch-and-post sight picture with a blacked-out rear to push visual focus onto the front post and speed up target acquisition.

The front sight features a green tritium lamp encircled by a high-contrast green outline ring for quick daylight acquisition and a bright glow in low light. The rear sight pairs a matching green tritium lamp with a blacked-out steel body. Both lamps are self-illuminating tritium, so the sights remain visible in any lighting condition without batteries, switches, or ambient-light charging.

Sight bodies are CNC machined from steel and finished in a durable matte black coating for snag-free holster draw and corrosion resistance. Sized specifically for the slim-frame Glock 42 / 43 / 43X / 48 pistol platform, the R3D is a direct-replacement sight set that swaps the factory sights for a brighter, tritium-powered low-light setup.