Ameriglo Classic Tritium Night Sight Set 3-Dot for Glock 20 21 29 30 31 32 36 40 41

The AmeriGlo Classic Tritium Night Sight Set with 3-Dot configuration is a drop-in replacement sight system designed for Glock 20, 21, 29, 30, 31, 32, 36, 40, and 41 pistols. This tritium night sight set features a white outline 140-mil-wide front sight paired with a 155-mil-notch green tritium rear sight, delivering consistent visibility across all lighting conditions from bright daylight to complete darkness. The two-dot green tritium rear configuration provides a clean sight picture while the bright front tritium element ensures rapid target acquisition in low-light tactical scenarios.

Tritium night sights operate via self-illuminating tritium gas tubes that require no batteries or external power source. The white outline rear sight reduces glare and provides a contrasting reference plane, while the prominent front tritium dot enables fast sight alignment in conditions where traditional steel sights become unreliable. The 3-dot tritium configuration—two rear dots and one front dot—is the standard sight picture found across law enforcement and military platforms, making this geometry familiar to trained shooters. These sights are engineered as direct replacements for factory Glock sights, requiring no modifications to slide or frame.

This sight set is ideal for patrol officers, defensive shooters, and range competitors who train across variable lighting conditions. The Glock 20 and 21 platforms are full-size duty pistols in 10mm and .45 ACP, while the compact variants (29, 30, 36, 40, 41) serve as backup and concealed-carry options. Whether upgrading from factory plastic sights or replacing worn tritium units, this AmeriGlo Classic set delivers the night-fighting capability required in professional and serious-use contexts. Tritium sights maintain their luminosity for approximately 12 years under normal storage conditions.