The AmeriGlo Trooper Night Sights for Glock 20/21 deliver exceptional low-light target acquisition with bright green tritium lamps, giving competitive shooters and everyday carriers a decisive edge when it matters most.
- Green tritium front lamp with high-visibility orange or LumiGreen luminescent outline
- Two green tritium rear lamps for fast, reliable three-dot sight alignment
- LumiGreen paint glows brightly for up to 10 minutes after light exposure
- Highly visible under all lighting conditions — daylight, dusk, and total darkness
- Precision-machined to fit Glock 20 and Glock 21 frames without modification
- Crafted in the USA by AmeriGlo, a trusted leader in tritium iron sight manufacturing
Who This Is For
These night sights are ideal for Glock 20 and Glock 21 owners who demand reliable low-light performance — whether for home defense, concealed carry, duty use, or competition. If you're transitioning from factory plastic sights to a serious upgrade, the AmeriGlo Trooper set offers a proven tritium solution with the added bonus of photoluminescent paint for exceptionally fast sight acquisition in any environment.
Specifications
| Brand | AmeriGlo |
|---|---|
| Model | Trooper Night Sights |
| Compatible Pistols | Glock 20, Glock 21 |
| Front Sight | Green tritium lamp with orange or LumiGreen outline |
| Rear Sight | Two green tritium lamps, black serrated blade |
| Tritium Color | Green |
| Luminescent Feature | LumiGreen paint — glows up to 10 minutes post-exposure |
| Tritium Lifespan | Approximately 12 years |
| Installation | Requires standard Glock sight tool |
| Country of Origin | USA |
Frequently Asked Questions
Will these sights fit both the Glock 20 and Glock 21?
Yes. The AmeriGlo Trooper Night Sights are specifically designed for the Glock 20 (10mm Auto) and Glock 21 (.45 ACP), which share the same frame and slide dimensions. They are not cross-compatible with other Glock generations or models without verification. Always confirm your exact model before ordering.
How do tritium night sights work, and how long do they last?
Tritium is a naturally glowing radioactive gas sealed inside small borosilicate glass vials. It requires no batteries or external light source — it glows continuously in the dark. AmeriGlo's tritium lamps have an effective lifespan of approximately 12 years, after which brightness gradually diminishes. The additional LumiGreen paint coating on this model also charges under light, providing an extra burst of glow for fast target acquisition.
Do I need a gunsmith to install these sights?
Most experienced gun owners can install Glock sights at home using a quality Glock sight pusher tool or sight installation block. The rear sight slides into the dovetail and the front sight requires a small flathead or Glock front sight tool. If you're not comfortable with sight installation, a qualified gunsmith can typically complete the job quickly and inexpensively.