The HiViz GLMFD21 FastDot H3 sight set transforms target acquisition speed on Glock MOS pistols through its dual-illumination design. This sight combination delivers rapid target engagement in all lighting conditions with a bright red fiber optic front sight paired with green tritium rear sights.
What Makes This Different
The FastDot design features a larger front sight dot that creates faster sight alignment compared to standard three-dot configurations. The red fiber optic front sight gathers ambient light during daylight hours while the green tritium rear sight provides consistent illumination in low-light conditions. This contrasting color combination reduces sight confusion and improves target acquisition speed by up to 30% over traditional same-color sight systems.
Key Features
- Red fiber optic front sight with replaceable LitePipe for maximum brightness
- Green tritium rear sight with 12-year guaranteed illumination
- FastDot configuration reduces sight alignment time
- Direct fit for Glock MOS (Modular Optic System) pistols
- Steel construction with corrosion-resistant finish
- Standard height maintains holster compatibility
- Tool-free LitePipe replacement system
The sight set performs consistently across temperature ranges from -40°F to 150°F without losing zero or brightness. Competition shooters report improved split times in USPSA and IDPA matches, while law enforcement officers benefit from the enhanced visibility during low-light encounters. The contrasting red-green color scheme works effectively for shooters with various forms of color vision deficiency.
Technical Specs
- Compatibility: Glock MOS pistols (17 MOS, 19 MOS, 34 MOS, etc.)
- Front sight: Red fiber optic with steel housing
- Rear sight: Green tritium with steel construction
- Sight height: Standard Glock specifications
- Tritium half-life: 12 years guaranteed brightness
- Installation: Professional installation recommended
- Finish: Matte black steel
- Country of origin: USA
The GLMFD21 sight set addresses the limitations of factory Glock sights while maintaining the reliability Glock owners expect. The combination of daylight-bright fiber optic technology and long-lasting tritium illumination ensures consistent performance across all shooting scenarios.