The TruGlo TG231N4 Tritium Night Sights deliver reliable low-light target acquisition with self-illuminating tritium inserts that require no batteries or external light source. These precision-machined sights provide consistent aiming reference in complete darkness for up to 12 years.
What Makes This Different
Unlike fiber optic sights that depend on ambient light, tritium night sights generate their own illumination through radioactive decay. The TG231N4 features genuine Swiss tritium vials encased in shock-resistant steel bodies. Green tritium provides the brightest perceived illumination to the human eye, offering superior visibility compared to orange or yellow alternatives.
Key Features
- Genuine Swiss tritium vials rated for 12+ year lifespan
- Green tritium front and rear dots for maximum visibility
- CNC-machined steel construction with matte black finish
- Standard dovetail mounting fits most pistol sight cuts
- White outline rear sight for daylight contrast
- Snag-resistant low profile design
- No batteries or maintenance required
Field performance remains consistent across temperature extremes from -40°F to 160°F. The tritium illumination automatically adjusts to ambient conditions - brighter in darkness, dimmer in daylight. Law enforcement agencies specify tritium sights for duty weapons due to their reliability in critical situations. Competition shooters value the consistent sight picture regardless of lighting conditions.
Technical Specs
- Tritium Type: Swiss-made tritium vials
- Color: Green front dot, green rear dots
- Construction: CNC-machined steel
- Finish: Matte black oxide
- Mounting: Standard dovetail cut
- Operating Temperature: -40°F to 160°F
- Tritium Life: 12+ years guaranteed brightness
- Country of Origin: USA
Tritium night sights represent essential equipment for serious shooters who demand reliable performance in any lighting condition. The TG231N4's proven Swiss tritium technology eliminates guesswork in low-light scenarios where split-second target identification matters most.