Laser Ammo SureStrike L.A.S.R Range, with 9mm Luger, .40 S&W, .45 ACP & L.A.S.R Pro System Laser Ammo L.A.S.R. Pro Software - 9mm Surestrike Laser Cartridge with Dedicated Target Activator/Simulator Cap - .40 S&w Caliber Adaptor - .45 ACP Caliber Adapter - Additional Battery for Extended Use - Laser Ammo Warranty Requirements: PC computer (Windows OS) and a webcam (minimum resolution 640x480) Weight: 1.00lbs (0.45kg)