TruGlo TG131NTI TFO Tritium Fiber Optic Sight Set 1911 Government

The TruGlo TG131NTI TFO sight set combines tritium and fiber optic technology to deliver consistent target acquisition in any lighting condition. This dual-illumination system ensures shooters maintain sight picture clarity from bright daylight through complete darkness.

What Makes This Different

The TFO (Tritium + Fiber Optic) technology sets this sight apart from single-illumination alternatives. While traditional night sights rely solely on tritium that dims over time, and fiber optic sights become useless in darkness, the TG131NTI automatically transitions between light sources. Swiss tritium lamps provide 12-year guaranteed illumination, while precision-cut fiber optics gather ambient light for enhanced brightness during daylight hours.

Key Features

• Dual-illumination system combines tritium and fiber optic for 24-hour visibility
• Swiss tritium lamps rated for 12-year continuous illumination
• CNC-machined steel construction with snag-resistant design
• Green front and rear dots for fast sight alignment
• White focus-lock ring on front sight enhances target contrast
• Fits standard 1911 Government dovetail cuts without modification
• Shock-resistant construction rated for magnum loads

Field testing demonstrates reliable performance across temperature extremes from -20°F to 160°F. The sight set maintains zero through thousands of rounds in competition and duty applications. Law enforcement agencies report consistent performance in low-light scenarios where split-second target identification proves critical. The green illumination provides optimal contrast against most backgrounds while reducing eye strain during extended shooting sessions.

Technical Specs

• Front sight height: 0.200 inches
• Rear sight height: 0.200 inches
• Tritium color: Green (front and rear)
• Construction: CNC-machined steel
• Finish: Matte black
• Compatibility: 1911 Government models with standard dovetails
• Tritium warranty: 12 years
• Country of origin: USA

The TG131NTI represents proven sight technology that eliminates lighting limitations common with single-source systems. Professional shooters choose TruGlo TFO sights when sight visibility cannot be compromised, making this set essential equipment for serious 1911 users.