The XS Sights DXT2 Pro Big Dot Night Sights for Glock 42/43 deliver the ultimate combination of speed, visibility, and durability — purpose-built for defensive shooters who demand reliable low-light performance from their compact carry pistol.
- Industry-leading Big Dot front sight drives fast, instinctive target acquisition
- Tritium vial enclosed in a rugged aluminum-sleeved Tac Lamp insert for lasting durability
- Black Nitride finish provides superior corrosion resistance in harsh carry environments
- Photoluminescent glow dot charges in light and glows before tritium activates in darkness
- Convex dot profile maximizes surface area for enhanced light absorption and brighter glow
- Low-profile V-notch rear sight keeps focus locked on the front dot for rapid sight picture
Who This Is For
These sights are ideal for concealed carry holders, law enforcement professionals, and home defenders who carry the Glock 42 or 43 and need a proven, fast-acquiring sight system that performs in any lighting condition — from bright daylight to complete darkness. If your life may depend on your draw, the DXT2 Pro Big Dot gives you every advantage.
Specifications
| Brand | XS Sights |
|---|---|
| Model | DXT2 Pro Big Dot |
| Compatible Firearms | Glock 42, Glock 43 |
| Front Sight | Big Dot Tritium with Photoluminescent Ring |
| Rear Sight | Low-Profile V-Notch |
| Tritium Insert | Aluminum-Sleeved Tac Lamp Vial |
| Finish | Black Nitride |
| Sight Picture | Dot-the-i System |
| Installation | Drop-in replacement, standard Glock dimensions |
| Country of Origin | USA |
Frequently Asked Questions
Will these sights fit both the Glock 42 and Glock 43?
Yes, the XS Sights DXT2 Pro Big Dot Night Sights are specifically designed and sized to fit both the Glock 42 (.380 ACP) and Glock 43 (9mm) pistols. They are drop-in replacements that use the same sight dimensions as the factory sights on these models, requiring no permanent modification to the firearm.
How does the photoluminescent glow dot work alongside the tritium?
The DXT2 Pro uses a two-stage illumination system. The photoluminescent (glow-in-the-dark) ring around the tritium vial absorbs ambient light and glows in low-light conditions before it becomes dark enough for the tritium to be visible on its own. Once in complete darkness, the self-luminous tritium vial takes over, providing a bright green glow with no charging required. This ensures excellent visibility across the full spectrum of lighting conditions.
How long will the tritium vials last, and can they be replaced?
Tritium vials have a half-life of approximately 12 years, meaning your sights will remain bright and functional for well over a decade of regular carry use. XS Sights stands behind their products and offers a tritium warranty. When the vials do eventually dim, XS Sights provides a tritium replacement service — contact XS Sights directly or consult Goodland Guns for service options.