The XS Sight Systems Big Dot Tritium Express Set is designed for Sig P239 Pistol. XS Express Sights are made for fast sight acquisition in all light conditions. Sights feature a low profile, snag free design and are easily installed. Includes a Tritium green dot front and a white vertical line rear sight. Tritium inserts are surrounded by a thin white line for enhanced use in daylight, Big Dot versions have a larger white outline on the front sight surrounding the tritium insert. The rear sight does not contain a tritium insert.
- Compatibility: FNS40, 40C, and FNX40 - Fast Sight Acquisition In All Light Conditions - Low Profile - Snag Free Design - Easily Installed - Tritium Green Dot Front Sight - White Vertical Line Rear Sight
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- Harry S. Truman
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