Beretta trijicon night sight kit for nano pistol FEATURES:-Beretta Nano Trijicon Night Sights-Tritium gas-filled lamps with sapphire front lens-Precision machined metal body that hold the tritium gas filled lamps-Lamps glow bright green in the dark and have white outlines that show as white spots in the daylight-Sights are impervious to solvents and puncture-Hex wrench and screws included for assembly