Winning a gunfight and effectively defending your life requires solid front-sight focus, and the team at XS Sights understands how essential that front sight is on a small, defensive handgun. That led to the development of the XS Sights DXT2 Big Dot night sights, which is not only aimed easily in daylight, but also in nighttime and low-light environments. Each pair of XS Sights DXT2 Big Dot night sights are built with a tritium-illuminated, round front sight that allow for fast targeting in the dark, while a photoluminescent ring around the tritium lamp also allows for easy aiming when moving from bright to dark environments. The front sight is combined with the company's rear-sight design that incorporates a vertical, tritium-illuminated stripe. When it comes to aiming, getting your gun on target is fast and instinctive: just dot the i! The XS Sights DXT2 Big Dot night sights are constructed with a shallow rear notch for a greater field of view, and the sight is designed for rapid aiming at targets inside of 15 yards. This particular pair of DXT sights are built for the popular SIG Sauer P365. The sights fit all common holsters and may require filing to fit into the dovetail.