HiViz GLFD21 FastDot H3 Sight Set for Glock Red Fiber Optic Front / Green Tritium Rear

The HiViz GLFD21 FastDot H3 sight set upgrades your Glock with a unique low-profile single-dot system that combines a red fiber optic front blade with a green tritium rear for bright, 24-hour visibility in any lighting condition. The fiber-optic front gathers ambient daylight for a quick, intuitive sight picture, while the tritium capsule in the rear keeps glowing in low light and total darkness, so you stay on target from bright sun to a backlit doorway.

Built on a steel frame finished in black, the set drops into the factory dovetails at factory sight height for a clean, direct fit on the slide. The low-profile design keeps the sights tucked tight against the slide, reducing snag and helping the pistol draw cleanly from a quality holster. HiViz backs the tritium with a 12-year warranty for long-term confidence on the range or in a defensive rotation.

The GLFD21 fits all Glock pistols chambered in 9mm, .40 S&W, and .357 SIG. It is not compatible with optic-ready MOS models, the G19 EZ, or the G42/G43 .380 EZ variants.