This HD Night Sight Set (model SG101O, part no. 600571) is made by Trijicon and sized to fit Sig Sauer P225, P226, P228, and P239 pistols. Green tritium vials front and rear give a 3-dot low-light sight picture, with a high-visibility orange outline ringing the front sight for fast daylight acquisition too.

Key Specifications

• Fits Sig Sauer P225, P226, P228, and P239 pistols. A direct-fit night sight upgrade.
• Orange-outlined front sight. A tritium vial ringed in high-visibility orange for fast acquisition.
• Black U-Notch rear sight. Pairs with the front for a clean, fast sight picture.
• Green tritium front and rear. Gives a 3-dot low-light sight picture around the clock.
• Made by Trijicon’s HD Night Sight line. Built to address the needs of tactical and duty shooters.
• U-Notch rear sight design. A wide notch for fast sight alignment.
• 7.1-inch combined set length. Front and rear sight package length as manufactured.
• Sold as a matched front-and-rear set. Not a single sight.
• Ships at approximately 0.1 lb. A lightweight sight-only package.

Frequently Asked Questions

Which Sig Sauer models does this night sight set fit?

It’s sized for the Sig Sauer P225, P226, P228, and P239.

Do these sights use tritium?

Yes, both the front and rear sights use green tritium vials for a 3-dot low-light sight picture, with a high-visibility orange outline ringing the front vial.

Buy the Trijicon HD Night Sight Set – Sig Sauer P225/226/228/239

Upgrade your Sig Sauer’s sights with this Trijicon-made HD tritium night sight set. Shop the full Trijicon lineup or browse more Gun Sights in our Gun Sights category at Schaefer Defense.