The XS Sights DXT2 Big Dot Night Sights in Optic Orange deliver unmatched front sight acquisition in every lighting condition, making them an ideal upgrade for Glock 17, 19, and 22 owners who demand split-second accuracy when it matters most.
- Optic Orange finish provides brilliant contrast in full sunlight and low light
- Patent-pending glow dot absorbs light and glows before tritium activates
- Convex Big Dot surface maximizes light absorption for an intensified charge
- V-notch rear sight channels focus directly to the high-visibility front dot
- Tritium insert ensures reliable illumination in total darkness, no batteries needed
- Drop-in fit designed specifically for Glock 17, 19, and 22 pistols
Who This Is For
The DXT2 Big Dot Night Sights are purpose-built for concealed carry holders, home defenders, and duty officers who need fast, instinctive target acquisition under any lighting condition. If you run a Glock 17, 19, or 22 and want a sight system that works from noon sunlight to pitch-black darkness without hesitation, this is your upgrade.
Specifications
| Brand | XS Sights |
|---|---|
| Model | DXT2 Big Dot Night Sights |
| Color / Finish | Optic Orange |
| Compatible Firearms | Glock 17, 19, 22 |
| Front Sight Type | Convex Big Dot with Tritium & Glow Dot |
| Rear Sight Type | V-Notch with Tritium Insert |
| Illumination | Tritium (self-luminous, no batteries) |
| Low-Light Enhancement | Photoluminescent Glow Dot |
| Installation | Drop-in, gunsmith recommended |
| Country of Origin | USA |
Frequently Asked Questions
What makes the Optic Orange color better than standard white or green night sights?
Optic Orange is formulated to provide maximum contrast in bright daylight conditions where tritium alone offers little advantage. The color is based primarily on yellow with a hint of red, giving you a vivid, easy-to-pick-up dot in full sun while also retaining strong photoluminescent glow in fading light — bridging the gap before tritium kicks in at true darkness. This three-stage visibility (daylight, dusk, night) is what sets the DXT2 Optic Orange apart from conventional two-stage sight systems.
Will these sights fit all Glock 17, 19, and 22 generations?
XS Sights designs the DXT2 Big Dot sights to fit standard Glock dovetail dimensions used across Gen 3, Gen 4, and Gen 5 variants of the Glock 17, 19, and 22. However, it is always recommended to verify compatibility with your specific generation before purchase, and professional installation by a qualified gunsmith is advisable to ensure proper fit and zero.
How long does the tritium in these sights last?
Tritium is a radioactive isotope that naturally decays over time, with a half-life of approximately 12 years. XS Sights tritium inserts are rated for a useful service life of roughly 12 years, after which brightness will have diminished by about half. Even beyond that point, the photoluminescent glow dot continues to function independently, maintaining low-light utility well past the tritium's peak performance window.