BEAMSHOT BS8000S - Laser Combo with Red Laser Sight with STROBE FUNCTION /150 Lumens Flashlight (Carrying case&Battery are included) 150 lumens LED light and Red laser sight with secure ambidextrous toggle switches Exceptional glass laser lens produce better beam focus for more accurate target acquisition & exterior operating temperature range between-4f & 140f Innovative quick attach/Detach weapon rail mounting System for M1913/Picatinny rail; (patented) shock resistant and waterproof Power by one CR123A battery that provides approximate 36 hours continuous laser use or 45 minutes flashlight use Light weight compact design make weapon handling comfortable and natural; High Quality Carrying Case & CR123A Battery Included