Trijicon DI Night Sight Set for Glock 17-35, Steel Matte, 3-Dot Tritium Green Fiber Optic, Black Retainer

The Trijicon DI Night Sight Set for Glock 17-35 brings dual-illumination technology to your duty or carry pistol, combining tritium and fiber optic brightness for reliable aiming in any light condition. This is a complete front-and-rear sight package designed to work on full-size and compact Glocks, giving you the kind of always-on aiming reference that works equally well on a bright range, in hunting situations, or when low light is the reality. Unlike single-technology sights, the DI system layers tritium (which glows in darkness) with daylight-bright fiber optic collection—so you get constant sight visibility whether the sun is up or you're working with a flashlight.

What makes the DI Night Sight set stand out is the interchangeable fiber-rod design. You're not stuck with the fiber that ships in the box; Trijicon includes two spare green fiber rods and a torx key so you can swap or refresh the fiber in the field. The fiber itself is heat and chemical resistant, finished with the same durable technique Trijicon applies to its battle-proven ACOG scopes. The tritium element sits under a sapphire jewel for protection and additional light transmission. This is sighting hardware built to outlast your gun.

The set includes a rear sight with green tritium and a front sight with green tritium paired to a green fiber rod, all mounted on steel bodies with a matte finish. The black ring retainer keeps the fiber secure and styled to match the sight frame. Installation requires appropriate tools (the torx key is included for fiber changes, though sight installation itself uses standard gunsmith tools). For shooters who demand reliable day-and-night aiming without batteries or LED maintenance, this is a serious upgrade.

Key Features

• Dual-illumination design: tritium for darkness, fiber optic for daylight brightness
• Interchangeable fiber rods—replace or configure in the field with included torx key
• Complete front-and-rear 3-dot sight set for Glock 17-35 (full-size and compact frames)
• Steel construction with matte finish for durability and corrosion resistance
• Tritium lamps capped with sapphire jewels for impact and chemical protection
• Two spare green fiber rods included
• Heat and chemical resistant fiber, finished to ACOG standards

Specifications

Frequently Asked Questions

Do these Trijicon DI night sights fit my Glock?

The DI Night Sight Set is designed for Glock 17-35, which covers most full-size and compact Glock frames. Check your specific Glock model against that range to confirm fit; if you're unsure, confirm your pistol's model number before ordering.

Can I replace the fiber optic rod myself?

Yes. Trijicon includes a torx key in the package specifically for field fiber replacement. Two spare green fiber rods are included, so you can swap them out without gunsmith tools. This modular design also lets you experiment with different fiber colors if Trijicon offers them separately.

Will these sights work in complete darkness?

The tritium elements will glow in darkness without any external light source, providing an always-on aiming point. In daylight or well-lit conditions, the fiber optic component amplifies collected light for brightness that's unmatched by tritium alone. The dual-illumination approach ensures usability across any lighting scenario.

What's the difference between the DI and standard Trijicon night sights?

The DI (Dual Illuminated) design combines tritium and fiber optic in a single sight system, and crucially, the fiber rods are user-replaceable in the field. This gives you brightness in daylight (from the fiber) plus glow in darkness (from the tritium), and the flexibility to swap fiber rods without a gunsmith. The included spares and torx key make field maintenance straightforward.