Night Fision Costa Ludus Night Sights GLK001010OGXG - Black/Green Tritium, Orange Ring Front, Green Tritium Bar Rear

Night Fision's Costa Ludus night sights bring competition-proven low-light performance to your Glock duty or carry gun. Engineered for shooters who need reliable target acquisition in darkness or poor lighting, these tritium night sights pair a glowing front post with a rear bar sight, letting you build a sight picture fast when ambient light fades. The orange ring front sight gives you a daylight aiming reference while the green tritium fills the notch for low-light work—a practical two-tool design that handles everything from dawn range sessions to emergency use.

Built for Glock 17, 17L, 17MOS, and 19 platforms, the Costa Ludus sights are a direct retrofit—no gunsmithing required. Night Fision's tritium vials are factory-sealed and comply with DoT regulations, so you know they'll perform reliably for years of service. The black steel construction resists corrosion and holds up to hard use in training and field environments.

Whether you're a competitive shooter refining your low-light skills, a law enforcement professional, or a civilian prepping for home defense, these sights remove the guesswork of finding your front sight when the lights go down. The Trinidad-green rear and orange-ringed front create strong contrast, making transitions between daylight and darkness intuitive.

Key Features

• Green tritium rear bar sight and orange-ringed green tritium front post for fast low-light target acquisition
• Fits Glock 17, 17L, 17MOS, and 19 without modification
• Sealed tritium vials for reliable long-term performance
• Black steel construction for corrosion resistance and durability
• Factory-regulated brightness for consistent performance in darkness

Specifications

Frequently Asked Questions

What Glock models do these night sights fit?

The Night Fision Costa Ludus sights (GLK001010OGXG) are designed for Glock 17, 17L, 17MOS, and 19. They install as a direct replacement without modifications.

Will these sights help me aim in the dark?

Yes. The green tritium vials in both the front and rear sights glow in low light, allowing you to build and maintain a sight picture without a flashlight. The orange ring on the front sight provides a daylight reference point, while the green tritium glows when ambient light is low.

How long do tritium night sights last?

Night Fision uses sealed tritium vials that retain their brightness over many years of service. The exact lifespan depends on use, but quality tritium sights remain functional for well over a decade under normal conditions.

Do I need a gunsmith to install these sights?

No. These are direct-fit replacement sights for compatible Glock models and install without modifications. If you've installed sights before, you can swap them yourself; if not, any competent gunsmith can do it quickly.