The XS DXT Big Dot Tritium Express Set (brand part no. GL0004S5) is built for suppressor-height fitment on large-frame Glocks, covering the 20, 21, 29, 30, 30S, 37, and 41. Genuine Trijicon tritium vials power the Big Dot front sight for fast acquisition in any light, from full daylight through total darkness, and the low-profile, snag-free design is engineered specifically for high-stress defensive situations where fumbling for a sight picture isn’t an option. Every set is precision machined in Fort Worth, Texas.

Key Specifications

• Big Dot Tritium front sight for fast acquisition in any light.
• Genuine Trijicon tritium vials power the glow.
• Low-profile, snag-free design.
• Suppressor-height profile for large-frame Glocks.
• Enhances accuracy in low-light conditions.
• Built for high-stress defensive situations.
• Precision machined in Fort Worth, Texas.
• Fits Glock 20, 21, 29, 30, 30S, 37, 41.
• Weighs 0.17 pounds.

Frequently Asked Questions

Which Glock models fit this set? Large-frame models: 20, 21, 29, 30, 30S, 37, and 41.

Whose tritium does XS use? Genuine Trijicon tritium vials.

Where is it made? Precision machined in Fort Worth, Texas.

Buy the XS DXT Big Dot Tritium Sights

A defensive sight has to work the instant it’s needed, and this DXT set is built around exactly that requirement with genuine Trijicon tritium. XS Sights machines every set in Fort Worth, Texas. Browse the full gun sights lineup and order from our Lubbock, Texas gun shop for fast, insured shipping.