TruGlo TG131ST2Y TFO Black | Green Tritium & Fiber Optic Front Sight with Yellow Tritium & Fiber Optic Rear Sight

The TruGlo TG131ST2Y TFO sight set pairs a black front sight with green tritium and fiber optic elements against a yellow tritium and fiber optic rear sight—a high-visibility combination purpose-built for shooters who need reliable sighting in low light and bright daylight alike. This tritium and fiber optic front and rear sight combo is engineered for quick target acquisition on Sig Sauer P-Series pistols, delivering the redundancy of dual aiming technologies so you're never dependent on a single light source or battery.

Tritium glows on its own in darkness, eliminating the need for a flashlight or ambient light to locate your sights in a defensive encounter or low-light range session. The fiber optic elements gather available light and amplify it, making the sights pop in daylight and overcast conditions. Together, they give you a sight picture that works whether you're training at noon or drawing in a poorly lit space. The contrasting colors—green front and yellow rear—help your eye find the proper sight picture fast, which matters when speed counts.

TruGlo's TFO (Tritium Fiber Optic) technology has earned respect among serious shooters and defensive practitioners. This set fits Sig Sauer P-Series pistols with #6 front and #8 rear dovetails, so verify your gun's sight dimensions before ordering. Installation typically requires a sight pusher or a qualified gunsmith to avoid damage to your slide.

Key Features

• Tritium and fiber optic sighting system for low-light and daylight performance
• Green tritium front sight paired with yellow tritium rear sight for rapid target acquisition
• Fit Sig Sauer P-Series pistols with #6 front and #8 rear dovetail cuts
• Redundant aiming technology—independent of batteries or external light sources
• High-visibility color contrast for quick sight alignment

Specifications

Brand	TruGlo
Model	TG131ST2Y
Type	Tritium and Fiber Optic Sight Set
Front Sight Color	Black with Green Tritium and Fiber Optic
Rear Sight Color	Black with Yellow Tritium and Fiber Optic
Fit	Sig Sauer P-Series (#6 Front / #8 Rear Dovetail)

Frequently Asked Questions

Will these sights fit my Sig Sauer P-Series pistol?

These sights are designed for Sig Sauer P-Series pistols with #6 front and #8 rear dovetail cuts. Check your gun's manual or contact Sig Sauer to confirm your specific model's dovetail dimensions before purchase.

Do I need a light or battery to use the tritium sights?

No. The tritium is self-luminous and glows independently in darkness. The fiber optic elements gather ambient light, so they work in low light and daylight without requiring batteries or an external light source.

Can I install these sights myself?

Installation requires removing the factory sights and pressing new ones into the dovetail cuts. Most shooters use a sight pusher tool or have a gunsmith perform this work to avoid damaging the slide.

What's the difference between the green front and yellow rear sight?

The contrasting colors—green front, yellow rear—help you acquire and align the proper sight picture quickly. This color pairing is a proven design for target acquisition in both bright and dim conditions.