The HiViz FastDot H3 sight set for Glock MOS brings round-the-clock visibility to your 9mm, .40 S&W, or .357 SIG without the bulk of traditional combat sights. This low-profile sight system pairs fiber optic and tritium illumination, giving you a bright, fast-acquiring red front dot and green rear sight that work equally well in daylight, low light, and total darkness. Built entirely from steel and engineered to fit standard holsters, the FastDot H3 is purpose-built for shooters who demand reliability across every lighting condition without sacrificing concealability or draw speed.

What sets the FastDot H3 apart is its hybrid approach to illumination. The fiber optic element soaks up ambient light for daylight shooting, while the encapsulated tritium vial takes over when the sun sets—no batteries, no electronics to fail. The single-dot design keeps your sight picture simple and your target acquisition instinctive, whether you're training at the range or carrying for personal protection. The low-profile footprint means you aren't fighting excessive sight height, and compatibility with Glock MOS pistols ensures a secure, reversible mount without permanent modifications.

Hi-Viz backs this sight set with a 12-year tritium warranty against failure due to manufacturing defects under normal use, giving you confidence in the durability of your investment. As with all tritium sights, the vial is regulated by the US NRC; the end user is exempt from regulatory compliance, but disassembly should never be attempted. If you're running a Glock in 9mm, .40, or .357 SIG and want sights that work in any condition without compromise, the FastDot H3 delivers the performance and simplicity serious shooters expect.

The HiViz FastDot H3 sight set for Glock MOS brings round-the-clock visibility to your 9mm, .40 S&W, or .357 SIG without the bulk of traditional combat sights. This low-profile sight system pairs fiber optic and tritium illumination, giving you a bright, fast-acquiring red front dot and green rear sight that work equally well in daylight, low light, and total darkness. Built entirely from steel and engineered to fit standard holsters, the FastDot H3 is purpose-built for shooters who demand reliability across every lighting condition without sacrificing concealability or draw speed.

What sets the FastDot H3 apart is its hybrid approach to illumination. The fiber optic element soaks up ambient light for daylight shooting, while the encapsulated tritium vial takes over when the sun sets—no batteries, no electronics to fail. The single-dot design keeps your sight picture simple and your target acquisition instinctive, whether you're training at the range or carrying for personal protection. The low-profile footprint means you aren't fighting excessive sight height, and compatibility with Glock MOS pistols ensures a secure, reversible mount without permanent modifications.

Hi-Viz backs this sight set with a 12-year tritium warranty against failure due to manufacturing defects under normal use, giving you confidence in the durability of your investment. As with all tritium sights, the vial is regulated by the US NRC; the end user is exempt from regulatory compliance, but disassembly should never be attempted. If you're running a Glock in 9mm, .40, or .357 SIG and want sights that work in any condition without compromise, the FastDot H3 delivers the performance and simplicity serious shooters expect.