Meprolight Tru-Dot Tritium Night Sight Set for Glock 42/43/43X/48 - Steel Blue/Green

The Meprolight Tru-Dot tritium night sight set for Glock 42/43/43X/48 gives you a reliable green-over-green sight picture that works when your gun's factory sights don't. Whether you're shooting in low light, clearing a room at night, or just want backup illumination that doesn't depend on batteries or switches, tritium sights let you get a sight picture fast—with zero electronics to fail or maintain. The front blade stays bright green for contrast against the rear sight, giving you a clean, intuitive 3-dot sight alignment even in near-total darkness.

These night sights are built tough. Tritium gas tubes are sealed inside the steel blade and won't be affected by gun solvents, oils, or harsh weather. They stay visible for years without any input from you. That durability is why NATO and U.S. military forces rely on them, and why law enforcement and serious shooters choose them for duty and defensive carry. If you're running a Glock 42, 43, 43X, or 48 and you want to shoot accurately when daylight fades, tritium is the simplest, most reliable upgrade you can make.

Installation is straightforward: the front sight pins to your existing blade, and the rear sight replaces your factory rear entirely. The steel blue finish matches modern Glock aesthetics and holds up to hard use. With a 12-year factory warranty from the original purchaser, Meprolight stands behind these sights—and you stand behind iron you can trust in the dark.

Key Features

• Tritium gas light sources in both front and rear blades—no batteries or switches required
• Green-over-green 3-dot sight picture for fast, intuitive sight alignment in darkness
• Front sight remains green for maximum contrast against rear sight
• Sealed tritium tubes resist gun solvents, oils, and weather
• Steel blue finish coordinates with modern handgun design
• Complete set includes both front and rear sights
• 12-year factory warranty

Specifications

Frequently Asked Questions

Will these tritium night sights work on my Glock 42, 43, 43X, or 48?

Yes. This set is purpose-built for those four Glock models. Both front and rear sights are included; the rear replaces your factory rear sight, and the front pins to your existing blade.

Do I need batteries or a switch to use these night sights?

No. Tritium gas tubes are sealed inside each blade and emit light continuously and automatically—no batteries, no on/off switch, no maintenance needed. The light source lasts for years.

How long do tritium sights stay visible?

Tritium provides a bright green glow in darkness for years. These sights are covered by a 12-year factory warranty from Meprolight.

Will gun solvents or oils damage the tritium tubes?

No. The sealed tritium gas tubes are unaffected by gun solvents, oils, or weather, so you can clean and maintain your gun normally without worry.