The Truglo Brite-Site Tritium Night Sights for Glock 42/43 deliver reliable, battery-free low-light target acquisition so your compact carry pistol is ready when it matters most.
- Tritium-powered glow requires no batteries and no light charging
- Bright green front and rear tritium vials for fast sight alignment
- White dot appearance in daylight for seamless day-to-night transition
- Snag-resistant, low-profile design clears holsters smoothly every draw
- Precision-fit for Glock 42 and Glock 43 slide dimensions
- Uses the brightest tritium available for maximum visibility in darkness
Who This Is For
These night sights are ideal for concealed carry holders, home-defense gun owners, and everyday shooters who rely on the Glock 42 or 43 as their primary carry pistol. If you demand confidence in any lighting condition — from a dimly lit parking garage to a completely dark room — the Truglo Brite-Site Tritium sights provide the dependable glow-in-the-dark visibility that passive tritium technology has proven over decades of real-world use.
Specifications
| Brand | Truglo |
|---|---|
| Model | Brite-Site Tritium |
| Part Number | TG231G1A |
| Compatible Pistols | Glock 42, Glock 43 |
| Front Sight | Green Tritium Dot |
| Rear Sight | Green Tritium Dots |
| Daylight Appearance | White Dot / White Outline |
| Power Source | Self-Luminous Tritium (No Battery) |
| Tritium Lifespan | Approximately 12 Years |
| Profile | Snag-Resistant, Low-Profile |
| Holster Compatibility | Standard OEM-Profile Holsters |
| Installation | Gunsmith Recommended |
Frequently Asked Questions
Do these night sights need to be charged with a flashlight or UV light to glow?
No. Truglo Brite-Site Tritium sights use self-luminous tritium gas vials that produce their own continuous glow without any external light source, UV charging, or batteries. As a radioactive isotope, tritium emits a steady, safe green glow 24 hours a day for approximately 12 years before the brightness begins to fade noticeably.
Will these sights fit my Glock 43X or Glock 48?
These sights are specifically designed and sized for the Glock 42 and Glock 43 models. While the Glock 43X and 48 share some similarities, their slide dimensions and sight cuts may differ. We recommend verifying compatibility with your specific model before ordering, or contacting Truglo directly to confirm fitment for those variants.
Can I install Truglo Brite-Site sights myself, or do I need a gunsmith?
Glock sight installation requires a sight pusher tool to safely remove the factory rear sight and press in the new one without damaging the slide. While experienced DIY enthusiasts with the proper tools can perform the swap, we strongly recommend professional installation by a qualified gunsmith to ensure correct fit, torque, and zero — especially on a carry firearm where reliability is critical.