XS Sights DXT2 Big Dot, Tritium Night Sights, Yell
The XS Sights DXT2 Big Dot tritium night sights deliver the visibility you need when it matters most—in low light and at speed. Built for defensive shooters and everyday carry, these handgun sights merge a large, high-contrast front sight dot with tritium illumination and photoluminescent technology, so you can pick up your sight picture in daylight, dusk, or darkness without hunting for your irons. The yellow variant glows particularly bright when ambient light fades, giving you a sight picture that doesn't rely on batteries or your ability to remember where your gun is pointed.
The front sight's Big Dot measures 0.188 inches—significantly larger than traditional combat sights—and features a convex shape that maximizes light absorption and extends your visibility envelope. The photoluminescent Glow Dot absorbs whatever light is available and releases it as a gentle emission in dim conditions. Up front, a reflective white stripe and tritium tube work together; in the rear, a shallow V-notch with a non-tritium design keeps your focus locked on the front sight and gives you a wider field of view. That rear sight ledge isn't just for looks—it's indexed for one-handed slide manipulation, crucial if your support hand isn't available.
XS Sights machined these from durable steel and backed them with a 12-year tritium warranty. The sight picture is simple and intuitive: dot the "i" with your front sight in the rear notch, and you're ready to move. Whether your eyesight isn't what it used to be or you simply want faster target acquisition in low light, the DXT2 sights are engineered for shooters who refuse to compromise on their ability to see when darkness falls.
Key Features
- Tritium-powered front sight with photoluminescent Glow Dot for low-light visibility
- Large 0.188-inch Big Dot front sight for faster target acquisition
- Yellow variant optimized for maximum glow brightness in darkness
- High-contrast colored front sight for daylight performance
- Shallow V-notch rear sight with non-tritium white reflective stripe—keeps focus on the front
- Low-profile design maximizes field of view
- Rear sight ledge enables one-handed slide manipulation
- CNC-machined steel construction built for durability
- Simple "dot the i" sight picture—intuitive and fast
Specifications
| Brand | XS Sights |
| Model | DXT2 Big Dot |
| Sight Type | Tritium night sights with photoluminescent Glow Dot |
| Front Sight Dot | 0.188 inches |
| Front Sight | Tritium-powered with Glow Dot |
| Rear Sight | Shallow V-notch, non-tritium, white reflective stripe |
| Rear Sight Ledge | Yes, for one-handed manipulation |
| Material | CNC-machined steel |
| Tritium Warranty | 12 years |
Frequently Asked Questions
What handgun are these XS Sights DXT2 sights made for?
These sights are specifically crafted for Walther pistols. Check your firearm's model before ordering to ensure proper fit and compatibility.
How do these night sights work in low light?
The DXT2 combines tritium illumination in the front sight with a photoluminescent Glow Dot. The Glow Dot absorbs ambient light during the day and emits a visible glow when lighting is limited. The tritium tube provides independent illumination. The yellow variant produces the brightest glow in darkness.
What makes the Big Dot better for fast shooting?
The front sight dot measures 0.188 inches—substantially larger than standard combat sights. The convex shape maximizes light absorption and glow intensity. The larger sight picture is easier to acquire quickly and works well for shooters with aging eyes or anyone prioritizing speed over precision in defensive scenarios.
Can I manipulate the slide one-handed with these sights?
Yes. The rear sight includes a ledge indexed for one-handed slide manipulation, a practical feature for shooters who may need to reload or clear a malfunction with only one hand available.

