The XS Sights R3D Night Sights for Glock (Suppressor Height, Green) deliver exceptional low-light target acquisition, combining tritium and photoluminescent technology in a suppressor-compatible profile designed for serious defensive shooters.
- Tritium front and rear inserts glow reliably in total darkness without batteries
- Photoluminescent glow dot charges in ambient light for instant low-light visibility
- Wide notch rear sight speeds up target acquisition under stress
- Anti-reflective rear lens eliminates glare for a clean, crisp sight picture
- Suppressor height design clears threaded barrels and MOS-compatible optic plates
- Traditional 3-dot tritium configuration for familiar, intuitive aiming
Who This Is For
These sights are purpose-built for Glock owners who run suppressors or MOS-compatible optics and demand reliable performance in any lighting condition. Whether you're a concealed carry permit holder, a home-defense-focused shooter, or a competitive pistol shooter running a can, the XS R3D Suppressor Height sights offer a rugged upgrade that keeps you on target when it matters most.
Specifications
| Brand | XS Sights |
|---|---|
| Model | R3D Night Sights – Suppressor Height |
| SKU | RPLXSSGL-R021P-6G |
| Fit | Glock (Small Frame & Standard, Suppressor Height) |
| MOS Compatible | Yes |
| Front Sight | Tritium with Photoluminescent Green Glow Dot |
| Rear Sight | Tritium, Wide Notch, Anti-Reflective Lens |
| Sight Picture | Traditional 3-Dot |
| Height | Suppressor Height |
| Co-Witness | Compatible with Select Optics |
| Material | Steel |
| Color / Illumination | Green Tritium |
Frequently Asked Questions
Which Glock models are compatible with these suppressor height sights?
The XS R3D Suppressor Height sights are designed to fit a wide range of Glock pistols that use the standard small-frame dovetail, including popular models such as the Glock 17, 19, 26, 34, and many others requiring suppressor height sights. Always verify your specific model's dovetail dimensions against XS Sights' fitment guide before purchasing to ensure proper installation.
Will these sights co-witness with my red dot optic on a Glock MOS pistol?
Yes — the suppressor height profile is MOS-compatible and designed to co-witness with select optics commonly mounted on Glock MOS pistols. The co-witness relationship (absolute or lower third) will depend on the specific optic and mount height you're running. XS Sights recommends verifying compatibility with your chosen optic before installation.
How long do the tritium inserts remain effective?
Tritium is a mildly radioactive gas that naturally decays over time. The tritium inserts in XS R3D sights have an effective brightness lifespan of approximately 12 years, after which they will gradually dim but may still be functional. The photoluminescent glow dot, which charges from ambient light, remains effective indefinitely as a supplementary low-light aiming aid.