TruGlo TG131ST1 TFO Black | Green Tritium & Fiber Optic Front & Rear Sight Set

The TruGlo TG131ST1 TFO tritium and fiber optic sight set pairs two proven light-gathering technologies to solve a real problem: getting a fast, accurate sight picture across all lighting conditions. Front and rear sights work together to deliver consistent brightness whether you're shooting in bright daylight or low-light scenarios—no batteries required. This is the kind of redundant design that matters when reliability counts, and it's built on TruGlo's patented combination of tritium night sights and fiber-optic technology.

If you've ever struggled to find your sights in dim conditions or squinted through glare, you know why handgun sights matter. The TG131ST1 addresses both extremes. Fiber optics gather ambient light during the day, keeping your sight picture bright and fast-acquiring. Tritium does the heavy lifting when the sun goes down, emitting its own light so you can aim in near-total darkness. The fiber is concealed from the shooter's perspective, so it won't distract you or tip off your target. Steel construction is CNC-machined for durability, and the snag-resistant design won't catch on clothing or holster edges.

Fit and function are straightforward: these sights fit standard holsters and work with the common mounting patterns on most semiautomatic handguns. No special tools or gunsmithing required for installation on compatible firearms. If you're looking for a no-compromise handgun sight upgrade that performs in sunlight and moonlight alike, the TG131ST1 delivers the kind of practical redundancy that justifies the cost.

Key Features

• Tritium and fiber-optic combination for bright sight pictures day and night
• Fiber optics stay concealed from shooter view—no visual interference
• No batteries needed; tritium self-illuminates in low light
• CNC-machined steel construction for durability and precise machining
• Snag-resistant design for smooth draw and holster fit
• Compatible with standard holsters

Specifications

Frequently Asked Questions

What handguns do these sights fit?

The TG131ST1 is designed to fit standard semiautomatic handgun sight mounting patterns. Verify compatibility with your specific firearm before purchase, as mounting may require professional installation depending on your gun's dovetail or other attachment system.

Do these sights work in complete darkness?

Yes. The tritium element emits its own light independent of external light sources, making the sight picture visible in low-light and night conditions. The fiber-optic element enhances brightness in daylight and dim conditions but relies on available light, so tritium is the primary low-light performer.

Will the fiber optic get in my way while aiming?

No. The fiber-optic technology is concealed from the shooter's view, so it won't interfere with your sight picture or distract you during aiming.

Do I need batteries or maintenance?

No batteries required. Tritium night sights are self-illuminating and require no external power or ongoing maintenance to function.