The XS DXT2 Big Dot Night Sights, Yellow, Glock 17/19/22-38 from XS Sights (XS Sights part no. GL-0009S-5Y) is a tritium front and rear sight set for Glock 17, 19 and 22 through 38 pistols. The front sight is an oversized yellow dot around a tritium vial, and the low-profile V rear carries a vertical tritium vial, so the pair gives you a glowing dot-over-line picture after dark. It is a defensive upgrade over the factory plastic sights, cut from CNC-machined steel in Fort Worth, Texas, and it fits Gen 1 through Gen 6 pistols. This standard-height set suits a carry or home-defense Glock that stays iron-sighted.

Key Specifications

• Both sights are tritium-powered, front and rear, so each shows a visible index point in low light.
• The front sight has a yellow photoluminescent glow dot that absorbs ambient light and glows in low light.
• The Big Dot front sight measures 0.188 inch, an oversized target that is easy to pick up under stress.
• Front sight height is 0.250 inch for the standard-height fit.
• Rear sight height is 0.220 inch, matched to the front sight for this fit.
• The rear sight is a low-profile shallow V with a vertical tritium vial that draws the eye to the front dot.
• The fit covers the Glock 17, 19, 22, 23, 24, 26, 27, 28, 31, 32, 33, 34, 35, 36, 38, 39, 45 and 47, across Gen 1 through Gen 6.
• The sights are CNC-machined steel, a durable alternative to the plastic factory sights.
• The kit includes the front sight, rear sight, hex wrench, front sight tool, red threadlocker and an instruction insert.
• XS backs the tritium with a 12-year warranty.

Frequently Asked Questions

Why choose yellow instead of orange? Optic Yellow glows the best in low light, XS says, while orange offers the most contrast in bright light.

Does it need batteries? No. The glow comes from tritium in the sights and a photoluminescent dot, so there is nothing to charge or replace.

Can I install them at home? Yes. XS designed the DXT2 sights with a slip-fit design that installs with basic tools, and the kit includes the hex wrench, front sight tool and red threadlocker. XS also offers installation services.

Buy the XS DXT2 Big Dot Night Sights, Yellow, Glock 17/19/22-38

A bright yellow dot gets your eye to the front sight quickly in any light. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and browse more gun sights from the rest of the lineup.