Big Dot Express Sights
All our Big Dot Express sight systems feature a large, easy-to-see front sight. The front sight uses a unique photoluminescent Glow Dot that absorbs surrounding light and emits a gentle glow in low light. The dot's convex shape provides a larger surface area, maximizing light absorption and intensifying the Glow Dot's brightness. Our primary objective when designing the Big Dot Express sights was to make them large and highly visible, addressing common issues such as aging eyes and deteriorating vision. The rear sight features a shallow V shape, ensuring a simple, low-profile design that offers a superior field of view.
To prevent confusion between the front and rear sights in high-stress situations, we adopted the "dot-the-i" sight picture. This sight picture features a tritium dot in the front sight and a line in the rear sight, enabling quick, accurate target acquisition. In most gunfights, both the victim and attacker are in motion, with the victim primarily focused on the threat. Big Dot Express sights address these challenges by being big, bright, and easy to see in any scenario or time of day.
DXT2 Walther PDP Sights Overview
Our DXT2 tritium sights improve on our original flagship product. The front sight features a yellow or orange photoluminescent glow dot surrounding a tritium vial in the center. The combination gives you a vibrant front sight in bright light and a glowing sight in low light. The shallow V rear sight has a vertical tritium vial for low-light indexing and is low-profile to help draw your eye to the front sight.
DXT2 Features:
- Tritium-powered front and rear sight
- High-contrast yellow or orange front sight
- Glow dot absorbs ambient light and glows in low light
- Simple dot-the-"i" sight picture for faster sight acquisition
- Kit Includes: front sight, rear sight, hex wrench, front sight tool (if applicable), red threadlocker, insert with instructions
Large and Easy to See Front Sight — Big Dot Measures 0.188".
All our products are made from durable CNC-machined steel, and we offer a 12-year warranty on Tritium products.
Product Specs
Our suppressor height sets are tall enough to be compatible with some optics as backup iron sights for the Walther PDP. Some we have tested and confirmed include the Trijicon RMR & SRO, the Holosun 507c series, and the Vortex Viper.
| Sight Specs | Front Sight | Rear Sight | Front Dot Width |
|---|---|---|---|
| PDP Standard Height | 0.250" | 0.220" | 0.188" |
| PDP Suppressor Height | 0.405" | 0.375" |
0.188" |
| CCP, PPS, PPS M2 9 & 40 | 0.220" | 0.220" | 0.188" |
| 99, PPQ, S&W 99 | 0.240" | 0.220" | 0.188" |
Fitment
Our sights fit the new style Walther PDP with a Glock style rear only, they do NOT fit older PDP’s with “T” slot style rear sight.
Installation Instructions
Walther CCP, PPS, PPS M2 9 & 40: View Written Installation Instructions.
Walther 99, PPQ, S&W 99: View Written Installation Instructions.
XS Walther PDP sights can be installed using a hammer and punch. The rear sight installation can be very difficult. Please follow our install guide closely, and call our tech line at 888-744-4880 with any questions before installation.
Click to View the Written Installation Instructions.
File to Fit Installation Video:
About XS Sights
XS Sights is a second-generation, family-owned business in Fort Worth, TX. We specialize in high-performance gun accessories, from Walther night sights to AR, AK, and lever-action solutions. Proudly made in-house, our products reflect our passion for quality and innovation. Upgrade today; we make the best Walther PDP sights for self-defense.
WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. (For more information go to https://www.p65warnings.ca.gov/)
- Sight Picture:
- Express
- Illumination:
- Tritium Front & Rear
- Color:
- Yellow
- Surface Finish:
- Black Oxide
- Model:
- Walther PDP
- Color:
- Orange
- Model:
- Walther 99
- Model:
- Walther S&W 99
- Model:
- Walther PPS M2 9
- Sight Height:
- Standard Height
- Model:
- Walther PPS
- Sight Height:
- Suppressor/Optic Height
- Model:
- Walther PPQ
- Model:
- Walther PPS M2 40
- Model:
- Walther CCP
- Front Sight Size:
- Big Dot
