The Meprolight R4E Tritium Duty sight set brings purposeful, no-nonsense aiming to your Glock platform handgun. Designed with defensive shooters in mind, this green/green tritium sight system prioritizes rapid target acquisition and reliable performance in low-light conditions—situations where speed and clarity matter most. Unlike generic pistol sights, the R4E's geometry and tritium configuration are built around real-world shooting demands, not compromise.

What makes the R4E stand out is its five-element sight picture: two horizontal lines and one vertical line on the rear sight align with a prominent tritium dot on the front sight, creating a clean, repeatable aiming reference. This design reduces cognitive load under stress, helping shooters find their sight picture faster during defensive training or competition. The green/green tritium pairing offers excellent visibility in daylight and transitions smoothly in low light, where tritium's glow-in-the-dark properties shine. The sights are lightweight but built to handle duty-grade use without sacrificing durability.

Meprolight's reputation for rugged, field-tested optics carries through to their iron sight line. Whether you're setting up a Glock for home defense, duty carry, or backup sights to complement a mounted optic, the R4E delivers the kind of straightforward engineering that works when it counts.

Key Features

• Tritium illumination in both front and rear sights for low-light visibility
• Five-element sight geometry (three vertical, two horizontal) optimized for quick target acquisition
• Green/green tritium configuration for consistent daylight and night performance
• Lightweight, durable construction rated for duty use
• Designed specifically for Glock handguns

Frequently Asked Questions

Will the Meprolight R4E fit my Glock?

Yes—this sight set is engineered for Glock pistols. Meprolight designs the R4E specifically for Glock platforms, so fitment is direct.

How do tritium sights work in daylight?

The green/green tritium sights are visible in daylight through their physical geometry and contrast. Tritium glows in low-light and darkness, but the sights remain functional and visible during the day through normal sight picture alignment. The green color and sight geometry help with both daylight and low-light shooting.

Are these sights good for defensive or duty use?

Yes. The R4E was designed specifically for defensive shooting situations and duty carry. The five-element design reduces target acquisition time, and tritium illumination ensures the sights remain visible if you need them in low light or darkness.