TruGlo’s TFO sight set (part no. TG231S1) pairs the brand’s fiber-optic technology with tritium night sights, so the sight picture stays bright whether you’re shooting in daylight or complete darkness.

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The set uses a 3-dot, tritium square-front and square-notch rear pattern in green, is CNC-machined from steel, and conceals the fiber so it cannot be seen from the target’s side. No batteries are required, and the design is snag-resistant and fits standard holsters.

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Key Specifications

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• Combines tritium and fiber-optic technology (TFO) for both day and night visibility.

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• 3-dot tritium set, square front and square-notch rear, both green.

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• Sized for a Sig #8 front sight and #8 rear sight.

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• Tritium front/rear product configuration.

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• CNC-machined steel construction.

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• Concealed fiber that cannot be seen from the target’s side.

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• No batteries required.

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• Manufactured by Truglo.

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• Ships at approximately 0.05 lb.

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Frequently Asked Questions

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What makes a TFO sight different from a plain tritium sight? TFO combines TruGlo’s fiber-optic technology with tritium, so the sight stays bright in daylight and still glows after dark.

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Do these sights require batteries? No, the tritium and fiber-optic combination works without batteries or a separate light source.

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What Sig sight sizes does this set use? A #8 front sight and a #8 rear sight.

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Buy the TruGlo TFO Tritium/Fiber-Optic Sights – Sig #8 Front/#8 Rear, Green/Green

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Order it from Schaefer Defense, see more from Truglo, or browse the full Gun Sights lineup for other options.