PRODUCT SPECIFICATIONS:Dimension 1.75 X 4.05 X 7.75Height 1.7500Width 4.0500Length 7.7500BODY MATERIAL AIRCRAFT GRADEMAJOR COLOR BLACKLENGTH IN INCHES 3.45WEIGHT IN OZ 4.94MAXIMUM OUTPUT IN LUMENS 1000MAXIMUM RUN TIME IN HOURS 1.5MOUNT STYLE UNIVERSAL RAIL MOUNTBATTERY TYPE CR123INTEGRAL LASER NWATERPROOF YTYPE FIREARMS LIGHTSOTHER FEATURES: INCLUDES RAIL LOCATING KEYS FOR GLOCK STYLE, 1913 PICATINY S&W 99'S, BERETTA 90'S USES 2-CR123A LITHIUM BATTERY (INCLUDED) LED WITH 50,000 HOUR 15,000 CANDELA PEAK BEAM INTENSITY & 1000 LUMENS OUTPUT AMBIDEXTROUS ON-OFF SWITCH MULTI FUEL SL-B9 OR CR123A