Trijicon DI Night Sight Set for Glock 42, 43, 43X, 48 - Steel Matte 3-Dot Tritium Green Fiber Optic with Black Retainer

The Trijicon DI Night Sight Set for Glock 42, 43, 43X, and 48 brings dual-illumination technology to one of the most popular compact and subcompact pistol platforms. These steel 3-dot sights combine green tritium with green fiber optic elements, engineered to deliver a consistent aiming point in any light condition—from bright daylight to near-total darkness. Built for shooters who refuse to compromise on speed and accuracy regardless of lighting, the DI system stacks tritium's reliable glow against fiber optic brightness collection, creating what Trijicon calls an "ultra-bright" sight picture without batteries or electronics.

What sets the DI Night Sights apart is the field-replaceable fiber design. Unlike traditional night sights, you can swap the fiber rod yourself using the included torx key—no gunsmith needed. The set comes with two bonus green fiber rods, so you can experiment with different lighting conditions or have a backup on hand. The front sight pairs green tritium with the green fiber, while the rear sight features tritium only. All elements are finished with Trijicon's proprietary coating and capped with sapphire jewels for durability and light transmission.

The matte steel construction resists corrosion and blends seamlessly with Glock's factory slide finish. The black retainer ring provides contrast without glare. If you carry a compact Glock for work, personal protection, or sport shooting, these sights give you true all-light performance—the kind of reliability Trijicon has built its reputation on across decades of night-sight engineering.

Key Features

• Dual-illumination design: tritium for darkness, fiber optic for daylight brightness
• Field-replaceable fiber rod—swap in seconds with the included torx key
• Comes with two extra green fiber rods for customization and backup
• Green tritium front and rear sight elements with sapphire caps
• Matte steel construction for corrosion resistance and durability
• Black retainer ring on front sight for contrast and reduced glare
• Fits Glock 42, 43, 43X, and 48 compact and subcompact frames

Specifications

Frequently Asked Questions

Will these DI sights fit my Glock 42, 43, 43X, or 48?

Yes. The Trijicon DI Night Sight Set is designed specifically for the Glock 42, 43, 43X, and 48 platforms.

Can I replace the fiber rod myself without a gunsmith?

Yes. The DI sights feature an interchangeable fiber design. You can remove and replace the fiber rod in the field using the torx key included in the package.

What comes in the box?

The set includes a rear sight with green tritium, a front sight with green tritium and green fiber optic with black ring retainer, two additional green fiber rods, and a torx key for fiber replacement.

Do these sights work in complete darkness?

Yes. The tritium element glows continuously without external light, providing a visible aiming point in complete darkness. The fiber optic element collects ambient light during the day for additional brightness.