Ameriglo I-Dot Tritium Night Sight Set for Glock 17-39 Gen 1-4 - Green Front Dot with Yellow Outline & Single Dot Rear

The AmeriGlo I-Dot Tritium Night Sight Set for Glock 17-39 (Gen 1-4) strips away the complexity of traditional three-dot sight pictures and gives you an instinctive aiming system built for speed and clarity. Whether you're training at the range, running defensive drills, or carrying for personal protection, the I-Dot design lets you align the front dot directly above the rear dot on target—no fussy horizontal alignment required. It's the kind of simplification that speeds up your shot when precision matters.

This sight set uses tritium inserts that glow in low light and dark conditions, paired with a photo-luminescent outline on the front sight to keep your aim visible throughout the day and into dusk. The green front dot with yellow outline and single green rear dot give you a bright, easy-to-track sight picture in nearly any lighting. Tritium-powered night sights aren't a novelty for Glock shooters—they're a proven upgrade for those who want faster target acquisition and reliable visibility when ambient light drops.

AmeriGlo has built a reputation for durable, no-frills night sights that work on duty guns, carry guns, and range queens alike. This set fits Glock 17-39 pistols in generations 1 through 4, making it a practical upgrade for most mainstream Glock platforms. If you've been running factory plastic sights and want a dependable, intuitive alternative that performs in low light, the I-Dot delivers exactly that.

Key Features

• I-Dot sight design for faster, instinctive sight alignment
• Tritium inserts for reliable glow in darkness and low-light conditions
• Photo-luminescent front sight outline for daylight visibility
• Green front dot with yellow outline; single green rear dot
• Fits Glock 17-39, generations 1-4
• Durable aftermarket construction

Specifications

Frequently Asked Questions

Will these sights fit my Glock?

This set is designed for Glock 17-39 models in generations 1, 2, 3, and 4. Check your Glock's generation before ordering; if you're unsure, the generation is typically stamped on the slide.

How do I aim with I-Dot sights?

Simply stack the front green dot directly above the rear green dot on your target and press the trigger. There's no need to match horizontal lines like traditional three-dot sights, which can speed up your sight picture, especially under stress or in low light.

Will these sights glow in the dark?

Yes. The tritium inserts in both front and rear sights glow in darkness and low-light conditions without needing a light source. The photo-luminescent outline on the front sight also collects ambient light during the day to assist visibility at dusk and dawn.

What's the difference between tritium and photo-luminescent?

Tritium glows on its own in darkness through radioactive decay and requires no external light. Photo-luminescent material absorbs ambient light and glows faintly—it's highly effective in daylight and twilight but not in complete darkness. This set combines both for visibility across all lighting conditions.