The XS Sights R3D 2.0 Night Sights for Glock 43 deliver a second-generation upgrade engineered for faster target acquisition and reliable performance in any lighting condition — making them one of the most capable drop-in iron sight upgrades available for everyday carry.
- Dual-illuminated tritium photoluminescent front sight glows brightly day and night
- Green photoluminescent Glow Dot ring offers high-contrast aiming in all conditions
- Anti-glare blacked-out serrated rear sight drives focus to the front sight
- Black nitride surface finish ensures long-lasting durability for daily carry
- Rear sight ledge enables smooth, reliable one-handed slide manipulation
- DIY-install rated design requires 50% less installation force than Gen 1
Who This Is For
The XS R3D 2.0 is purpose-built for Glock 43 owners who rely on their pistol for everyday concealed carry and demand sights that perform under pressure. Whether you're a seasoned shooter upgrading from factory sights or a first-time EDC carrier looking for a reliable low-light solution, these sights offer a noticeable improvement in speed and accuracy without requiring a gunsmith for installation.
Specifications
| Brand | XS Sights |
|---|---|
| Model | R3D 2.0 |
| Compatible Firearm | Glock 43 |
| Front Sight | Dual-Illuminated Tritium Photoluminescent |
| Rear Sight | Blacked-Out Serrated, Anti-Glare |
| Glow Dot Color | Green Photoluminescent Ring |
| Surface Finish | Black Nitride |
| Installation | DIY-Install Rated (50% Less Force) |
| Special Feature | Rear Ledge for One-Handed Slide Racking |
| Intended Use | Everyday Carry (EDC), Self-Defense |
Frequently Asked Questions
Will the XS R3D 2.0 sights fit my Glock 43 without modification?
Yes. The XS R3D 2.0 sights are specifically designed and dimensioned for the Glock 43, fitting the factory dovetail cuts without requiring any machining or modification to the slide. The second-generation design also reduces the installation force required by 50% compared to the original R3D, making it a straightforward DIY installation with a standard sight pusher tool.
How do the tritium and photoluminescent elements work together?
The front sight uses a dual-illumination system that combines a tritium vial — which glows continuously using nuclear decay, requiring no charging — with a photoluminescent (glow-in-the-dark) ring that absorbs ambient or UV light and emits a bright glow afterward. In daylight, the green photoluminescent ring provides a vivid, high-contrast aiming point. In darkness, the tritium element takes over, ensuring you always have a usable sight picture regardless of available light.
How long will the tritium in the R3D 2.0 sights last?
Tritium has a half-life of approximately 12 years, meaning the vials in your R3D 2.0 sights will remain bright and fully functional for roughly 10–12 years of normal use before you may notice a gradual dimming. For most EDC applications, this service life comfortably covers the expected lifespan of a carry pistol's sight set before replacement would be considered.