Trijicon Night Sights for Glock 20 21
Trijicon
$108.69
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Trijicon
Trijicon Night Sights for Glock 20 21
The Trijicon Night Sights for Glock 20/21 deliver the same battle-proven aiming technology trusted by law enforcement agencies nationwide, giving you instant, reliable target acquisition in any lighting condition — from bright daylight to total darkness.
- Tritium-powered illumination provides a crisp sight picture in zero-light environments
- Enhanced daylight dot visibility for faster target acquisition in bright conditions
- Rugged construction withstands heavy recoil and harsh cleaning solvents
- Evenly distributed tritium light for a consistent, balanced sight picture
- Drop-in fit designed specifically for Glock 20 and Glock 21 frames
- Trusted by military, federal, state, and local law enforcement professionals worldwide
Who This Is For
These Trijicon Night Sights are the ideal upgrade for Glock 20 and Glock 21 owners who carry their pistol for personal defense, home protection, or duty use. Whether you're a law enforcement officer demanding dependable performance under stress, a competitive shooter looking for an edge in low-light stages, or a responsible citizen who refuses to compromise on self-defense, these sights deliver the confidence and speed you need when it counts most.
Specifications
| Brand | Trijicon |
|---|---|
| Compatible Models | Glock 20, Glock 21 |
| Sight Type | 3-Dot Tritium Night Sights |
| Illumination Source | Self-Luminous Tritium |
| Tritium Lamp Life | 12 Years (approximate) |
| Front Sight | Tritium Dot with White Ring |
| Rear Sight | Two Tritium Dots |
| Finish | Matte Black |
| Installation | Drop-In, Professional Recommended |
| Country of Origin | USA |
Frequently Asked Questions
Will these Trijicon night sights fit both the Glock 20 and Glock 21?
Yes. These Trijicon night sights are specifically designed to fit both the Glock 20 (10mm Auto) and Glock 21 (.45 ACP), which share the same frame size and sight dimensions. Professional installation is recommended to ensure proper fit, torque, and zero — though an experienced home gunsmith with the correct sight tool can also complete the swap.
How long do the tritium inserts last, and do they need batteries?
Trijicon night sights are completely self-powered — no batteries, no electronics, and no charging required. The tritium gas vials glow continuously through a natural radioactive decay process and are rated for approximately 12 years of reliable illumination before the glow begins to dim noticeably. Even after that point, the sights remain fully functional as standard iron sights during daylight use.
Are Trijicon night sights worth the upgrade over factory Glock sights?
Absolutely. The factory plastic sights that come stock on most Glock pistols offer limited visibility in low-light conditions and are more prone to wear over time. Trijicon night sights provide a significant upgrade in target acquisition speed, durability, and low-light performance — qualities that matter enormously in defensive or duty applications. For any Glock owner serious about performance, Trijicon sights are widely considered one of the highest-value upgrades available.
