Ameriglo 3XL Tall Green Tritium White Outline Front Tritium Dot Rear Glock

Low-light shooting demands sights engineered for speed and accuracy in darkness. The Ameriglo 3XL Tall Green Tritium White Outline Front Tritium Dot Rear combines self-illuminating tritium with clean sight picture geometry, letting shooters track targets when ambient light fails. Whether you're handling a FFL transfer in Sunnyvale or upgrading an existing pistol, these sights deliver the visibility serious shooters expect.

Tritium Night Sight Technology Explained

Tritium is a radioactive isotope that glows continuously without batteries or charging. The Ameriglo 3XL design pairs a bright green front sight with a contrasting white outline for rapid target acquisition in all light conditions. The rear tritium dot maintains sight alignment when you can't see traditional metal sights. This setup works for shooters managing private party transfer process paperwork or those maintaining existing firearms. The tall profile clears most slide-mounted optics, making these sights flexible for various shooting styles. Visit our firearms dealer in Sunnyvale for our full catalog.

Frequently asked questions

Do Ameriglo 3XL sights fit all Glock models?

These sights are cut for standard Glock dovetail dimensions. Most full-size and compact Glocks (Gen 3–5) accept them, but confirm your specific model's sight slot width before purchase. Some subcompact models may require different rear sight heights.

How long does tritium stay visible in these sights?

Tritium has a half-life of approximately 12 years. The sights remain visible and functional well beyond that period, though brightness gradually decreases. Most shooters get 15+ years of reliable low-light performance before noticeable dimming occurs.

How long is the California firearm waiting period?

California requires a 10-day waiting period from when DROS is submitted until you can take possession of the firearm. Looking for FFL dealer Gilroy? Visit us in Sunnyvale.