The Sig Sauer X-Ray3 Day/Night Pistol Sight Set, Green Front/Round Rear (brand part no. SOX10004) is a tritium-illuminated iron sight set built for low-light target acquisition, from Sig Sauer. Its 3-dot tritium configuration pairs a glowing front sight with a round-notch rear sight — a slightly different rear sight profile than the square-notch X-Ray3 set, for shooters who prefer that sight picture. The tritium inserts glow in low light without batteries or a power switch, giving a shooter a usable sight picture around the clock. This listing is filed under our Lights & Lasers class in our catalog, but it’s a genuine set of tritium iron sights, not a light or laser — written up accordingly.

Key Specifications

• Tritium 3-dot configuration glows in low light without batteries.
• Round-notch rear sight paired with a tritium front sight.
• 4.7-inch length.
• Day/night usability in both bright and dark conditions.

Frequently Asked Questions

How does this differ from the square-notch X-Ray3 set? It uses a round-notch rear sight instead of a square notch, for a different rear sight picture.

Do these sights need batteries? No, the tritium illumination glows in low light without any battery.

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