The TruGlo TG131GT2 TFO sight set combines tritium and fiber optic technology to deliver consistent target acquisition in any lighting condition. This dual-illumination system automatically transitions from bright fiber optic visibility in daylight to reliable tritium glow in darkness.
What Makes This Different
Unlike standard three-dot sights or single-illumination systems, the TFO design integrates both fiber optic rods and tritium vials within the same sight body. The fiber optic elements capture ambient light for maximum brightness during daylight shooting, while Swiss tritium provides a 12-year half-life for dependable low-light performance. This eliminates the need to choose between day and night sight capabilities.Key Features
- Dual illumination system with fiber optic and tritium technology
- Swiss tritium vials rated for 12-year half-life
- CNC-machined steel construction with protective sight rings
- Green front and rear sight configuration for fast target acquisition
- Direct replacement for factory Glock 20 and 21 sights
- No modification required for installation on compatible frames
- Shock-resistant design rated for full-power 10mm loads
Technical Specs
- Compatibility: Glock models 20, 21, 29, 30, 36, 41
- Front sight height: .315 inches
- Rear sight height: .394 inches
- Construction: CNC-machined steel with tritium inserts
- Illumination: Green fiber optic and tritium combination
- Tritium half-life: 12 years
- Installation: Drop-in replacement, front sight tool required
- Country of origin: USA
