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AmeriGlo built the I-Dot around one idea: get your eye to the front sight as fast as possible. Instead of the usual three-dot spread, the GL102 uses a dot-over-dot setup that stacks a single rear lamp directly under the front, giving you a clean vertical line to align on. Stack the dots, put green on target, and press. It's a layout that shines when you don't have time to think, which is exactly when a night sight earns its keep.
The front sight runs a green tritium insert wrapped in a white photoluminescent outline, so it stands out in daylight and glows on its own after dark. The rear is a single green tritium lamp centered below a .180" square notch, with no distracting extra dots to split your attention. The rear also extends to the end of the slide, giving you a longer sight radius, and the face is under-cut to knock down glare in bright conditions. It's a smart, purpose-built package for close-quarters speed and point-and-shoot work.
This set covers a wide range of large-frame and slim Glocks, fitting the 20, 21, 29, 30, 31, 32, 36, 40, and 41 across Gen 1 through Gen 4. Worth noting up front: these will not work on MOS-cut slides, so double-check your slide before ordering. The sights are machined from US-made bar stock steel with a black finish and use Swiss-made tritium light sources, so you're getting a durable steel body rather than plastic, plus tritium that keeps working without batteries or charging.
These press in like a standard Glock sight set, though the tight fit means a proper sight pusher and a punch make the job go smoothly. If you're not comfortable driving sights yourself, a gunsmith can knock this out quickly. Once they're seated, you've got a rugged, tritium-lit upgrade that turns a factory Glock into a far more capable low-light defensive pistol.
Instead of three separate dots, the I-Dot uses a single rear lamp stacked directly under the front dot in a dot-over-dot layout. This gives you a clean vertical line to align on and draws your eye straight to the front sight. It's built for speed and simple point-and-shoot alignment when you don't have time to line up multiple dots.
This set fits the Glock 20, 21, 29, 30, 31, 32, 36, 40, and 41 across Gen 1 through Gen 4. They do not fit Glock MOS optic-cut slides, so check whether your slide is milled for an optic before ordering. If you have a standard non-MOS slide in one of those models, you're good to go.
No. The green glow comes from tritium, a self-illuminating light source that works without batteries or charging and doesn't rely on being exposed to light first. The white front outline is photoluminescent, so it stands out during the day, while the tritium handles low-light and total darkness.
You can if you have the right tools. A sight pusher makes seating the front and rear much easier, and a proper punch helps with the tight fit. If you'd rather not risk it, most gunsmiths can install a Glock sight set quickly.
| UPC | 644406902843 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GL102 |
| Color | Green, White Outline |
| Model | |
| Product Type | Tritium Front/Rear |
| Style | i-Dot |
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