Night Fision

How Night Fision Sights Work: Tritium and Luminova

Night Fision sights use tritium gas vials — sealed glass tubes containing radioactive tritium that produces a continuous self-luminous glow without any external light source or battery. The tritium vials Night Fision uses are sourced from Switzerland and carry a 12-year warranty on brightness, meaning the sights will remain usefully bright for over a decade of service. Many Night Fision models also incorporate Luminova photoluminescent material around the tritium vial that charges in ambient light and provides additional brightness in low-light conditions immediately after leaving a lit environment. The combination of always-on tritium and charged Luminova gives Night Fision sights strong performance across the full range of lighting conditions a defensive shooter might encounter.

Night Fision Sight Configurations: Perfect Dot, Accur8, and Stealth

Night Fision offers three primary sight configurations. The Perfect Dot is their standard three-dot tritium night sight with matching tritium front and rear dots — the conventional configuration familiar to most handgun shooters. The Accur8 uses a blacked-out or high-visibility rear paired with a tritium front, reducing visual clutter and directing the eye to the front sight for faster acquisition. The Stealth series eliminates the rear dots entirely, using a plain black rear notch with a single tritium front dot, optimized for shooters who prefer the simplicity of a single reference point. Each configuration is available across most of Night Fision’s platform lineup, giving buyers meaningful customization over their sight picture preference.

Night Fision for Glock: Generation Compatibility and Fit

Night Fision produces one of the most complete Glock night sight catalogs available, covering Glock 17, 19, 26, 34, 43, 43X, 48, and most other models across Gen 3 through Gen 6. Their Glock sights are machined to tight tolerances for a press-fit installation that eliminates the lateral play sometimes present with looser aftermarket sights. Night Fision also produces suppressor-height Glock sights for pistols running compensators or red dot optics that require co-witness capability. Always verify generation and model compatibility when ordering — sight cuts vary between Glock generations and some models require specific sight heights.

Night Fision vs. Trijicon vs. XS Sights: Which Night Sight Is Right?

The three dominant night sight brands each have a distinct strength. Trijicon HD and HD XR are the premium benchmark — large front dots with high-contrast orange or yellow outlines that perform well in both bright and dark conditions, at a premium price. Night Fision competes directly with Trijicon on fit quality and tritium brightness while offering more platform coverage and competitive pricing. XS Sights differentiates on their Express system — a large front dot with a V-notch rear optimized for close-range acquisition speed over precision. Night Fision is the strongest all-around choice for shooters who want conventional three-dot or front-dot-only configurations with Swiss tritium quality and precise platform fit across a wide range of pistols.

Installing Night Fision Sights

Night Fision sights install using standard handgun sight pusher tools or a brass punch and hammer. Their press-fit tolerances mean a sight pusher is strongly recommended over a punch for installation — the tight fit that gives Night Fision sights their lateral stability also makes them resistant to casual installation. Front sights on most platforms are retained by a screw accessible from inside the slide. Night Fision includes installation instructions and the correct front sight screw for each platform-specific set. Professional installation by a gunsmith is an option for shooters who don’t own a sight pusher.

Frequently Asked Questions: Night Fision

How long do Night Fision sights last?
Night Fision sights carry a 12-year warranty on tritium brightness. Tritium has a radioactive half-life of approximately 12.3 years, meaning brightness will gradually decrease over time but remain usefully visible for well over a decade under normal use.

Are Night Fision sights made in the USA?
Night Fision sights are assembled in the United States in Wheeling, Illinois, using Swiss-sourced tritium vials. The brand is American-owned and operated.

Do Night Fision sights fit my Glock?
Night Fision produces direct-fit sets for most Glock models across Gen 3 through Gen 6. Verify your specific model and generation when ordering — sight heights and dovetail dimensions vary between generations and models.

What is the difference between Night Fision Perfect Dot and Accur8?
Perfect Dot uses matching tritium dots front and rear for a conventional three-dot sight picture. Accur8 uses a blacked-out or high-visibility rear with a tritium front only, reducing visual clutter and directing focus to the front sight for faster acquisition.

Browse Night Fision Sights
Shop all Night Fision night sights at Impact Guns — we ship nationwide.

See Also: Night Sights • XS Sights • Trijicon • Handgun Optics