Ameriglo GL203 i-Dot Night Sight Set for Glock 10mm/.45/.357 - Green Tritium Orange Outline Front / Green Tritium Rear

The Ameriglo GL203 is a fixed tritium night sight set engineered specifically for Glock Gen 1-4 pistols chambered in 10mm Auto, .45 ACP, and .357 SIG. Built on Ameriglo's popular i-Dot platform, the set pairs a single front dot with a single-dot rear notch so the shooter's eye naturally centers the two lamps for a fast, intuitive vertical sight picture in low light.

Both lamps are sealed tritium vials, so the sights glow continuously day and night with no batteries or external power required. The front sight carries a green tritium lamp with a bright orange outline for rapid target acquisition, while the rear sight uses a green tritium single-dot in a plain rear notch. The sights are housed in a rugged steel body finished in black, and the fixed dovetail-mount design carries no windage or elevation screws - sight-in is dialed in at installation and the picture stays locked to the slide from there.

Designed as a drop-in upgrade for Glock 10mm / .45 / .357 duty, defensive, and range pistols, the GL203 gives shooters reliable low-light aiming without depending on a weapon light or electronics.