XS DXT2 Big Dot Night Sights (brand part no. GL-0009S-5Y) fit a wide range of Glock pistols, from the 17 and 19 through the 22, 23, 24, 26, 27, and beyond, and swap the factory three-dot picture for a single oversized yellow front dot. That Big Dot design stays visible when focus narrows under stress, and its convex lens absorbs ambient light for a glow that holds up well after sunset. The set is sold complete, front and rear, and drops into the factory dovetail for a direct fit.

Key Specifications

• Big Dot front sight stays visible when focus narrows under stress.
• High-contrast yellow dot for both bright daylight and low light.
• Convex lens absorbs ambient light and glows after dark.
• Fits standard concealment holsters without modification.
• Fits a wide range of Glock models: 17, 19, 22, 23, 24, 26, 27, 31, 32, 33, 34, 35, 36, 38.
• Steel construction with tritium front and rear.
• Overall length of 8.05 inches.
• Weighs 0.13 pounds.
• Sold as a complete defensive express set, front and rear included.

Frequently Asked Questions

Which Glock models fit this set? A wide range, including the 17, 19, 22, 23, 24, 26, 27, and 31 through 38.

Why choose a Big Dot over a standard dot? The larger yellow dot stays easier to find when a shooter’s focus narrows under stress.

Does it need batteries? No, tritium powers the glow continuously.

Buy the XS DXT2 Big Dot Night Sights

A bigger, higher-contrast front sight is easier to find fast, which is exactly the problem this Big Dot set solves. XS Sights built it for shooters who want speed over precision hairsplitting. Browse the full gun sights lineup and order from our Lubbock, Texas gun shop for fast, insured shipping.