The XS Sight Systems 24/7 Big Dot Tritium Express Set is designed for Sig P220 Pistols. The sights is made for fast sight acquisition in all light conditions. This sights features a low profile, snag free design and are easily installed. It includes a Tritium green dot front and a white vertical line rear sight. The tritium inserts are surrounded by a thin white line for enhanced use in daylight. The 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.
