Kensight DAS U Serrated Blade Tritium Pistol Night Sight 1911 Defense Rear Black. This sight is fully adjustable with positive click adjustments for elevation and windage. A KFS Industries patent each tritium lamp is installed from the sides of the sight as opposed to the front causing it to be encased on both ends. This is to prevent the lamps from ever loosening and eventually falling out. It sits up a bit higher than most giving a nice profile for target shooting. This sight is perfect for nighttime training and nighttime defense. Requires minimum 0.23 in. Fornt sight. Available in green or yellow 0.08 in. Trijicon tritium bars. Fits certain model Springfield Armory Colt Wilson Combat STI International Les Baer Custom Rock River Arms Dan Wesson 1911s and many others. Specifications for Kensight DAS U Serrated Blade Tritium Pistol Night Sight: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Front Sight Color: Green Rear Sight Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Front Blade Height: 0.200 in 0.2 in Illumination Type: Tritium Condition: New Condition Quality: Excellent Condition Details: Other Package Contents: Kensight DAS U Serrated Blade Tritium Pistol Night Sight Kensight 860638: DAS U Serrated Blade Tritium Pistol Night Sight 1911 Defense Rear Black