Meprolight Mepro R4E Night Sight for Glock

• Five-point alignment layout: The R4E sight picture uses three vertical elements and two horizontal reference lines, helping the eye center the front sight faster under stress and making alignment easier in both daylight and low light.
• Self-illuminated tritium: Tritium inserts in the front and rear sights stay visible without batteries or external charging, so the pistol remains ready for defensive, duty, or carry use around the clock.
• Fixed steel construction: A steel sight body gives the set the durability expected from a hard-use handgun upgrade while keeping the simple, fixed arrangement preferred for everyday carry and service pistols.
• Day and night usability: The design combines a clear daytime sight picture with low-light visibility, giving the shooter one consistent reference instead of switching between separate day and night aiming solutions.
• Glock-specific fit: Built as a night sight set for Glock pistols, this model offers a direct replacement format for users who want improved visibility and faster indexing without changing the handling of the handgun.

About the Meprolight R4E Series

The Meprolight R4E series is an optimized-duty pistol sight family within Meprolight’s TRU-DOT range, developed for shooters who want a faster sight picture than a conventional three-dot arrangement. Introduced in 2015, the R4E concept centers on a distinctive alignment system with five sight elements: three vertical features and two horizontal lines. This layout gives the shooter a more structured visual reference, helping the front sight settle into the rear notch quickly when drawing, presenting the pistol, or shooting under pressure.

The series uses tritium illumination in both front and rear sights, so the sights remain visible in darkness without batteries. That makes the R4E especially relevant for defensive, duty, and concealed-carry pistols, where a sight must work immediately in changing light. The sights are built from steel, reflecting a design approach focused on durability and daily carry rather than adjustment-heavy competition use. Depending on the version, the series is offered with green or orange tritium, allowing shooters to choose a sight picture that suits their preference while keeping the same fast, self-illuminated R4E layout.

About the Meprolight Mepro R4E Night Sight for Glock

The Meprolight Mepro R4E Night Sight for Glock is a fixed, self-illuminated handgun sight set built for users who prioritize speed, simplicity, and dependable low-light visibility. On a defensive or carry Glock, the main advantage is not magnification or electronics, but a sight picture that is easier to read quickly. The R4E pattern gives the shooter a more guided visual reference than a standard notch-and-post arrangement, which can help reduce hesitation during rapid presentations and close-range defensive shooting.

Its tritium-powered front and rear sights stay visible without switches, batteries, or charging. In practical use, that means the pistol is ready at any hour, whether it is carried daily, kept for home defense, or issued for duty. Because the illumination is built into the sight set itself, the handling of the Glock remains familiar and uncomplicated. The fixed adjustment design also suits the role of a hard-use pistol sight: once installed, it provides a stable setup with no exposed controls to snag or shift during routine carry.

The steel construction supports the kind of durability expected on a service handgun, while the Glock-specific format makes this model a sensible upgrade for shooters who want better sight visibility without changing holster use, manual of arms, or the overall profile of the pistol. For users who prefer iron sights over electronics, or who want a dependable backup-free aiming system, this R4E configuration keeps the focus on fast alignment and constant readiness.

About Meprolight

Meprolight was founded in 1990 as a supplier of sights and battle optics to the Israel Defense Forces. Based in Or Akiva, Israel, the company develops and manufactures optical and electro-optical sighting systems for military, law-enforcement, and civilian markets. It is a division of SK Group and has built its reputation around practical sighting products designed for service use as well as sporting and defensive firearms.

Its catalog covers a broad range of categories, including conventional sights, tritium night sights, reflex optics, magnified optics, night-vision systems, and thermal devices. Meprolight also makes sighting systems for pistols, rifles, shotguns, and carbines, which gives the brand a strong position in both handgun and long-gun optics. In the handgun-sight segment, the company is particularly well known for self-illuminated tritium designs that emphasize durability, immediate usability, and simple operation in changing light conditions.

Main Features

• Manufacturer: Meprolight
• Series: Meprolight R4E
• Made in: Israel
• Self illuminated: Yes
• Sight adjustment: Fixed

Warranty

12 years. Meprolight states a 12-year warranty for tritium illumination on Mepro Tru-Dot self-illuminated night sights, which covers the illumination system used in this R4E handgun sight set.