These lightweight laser sights have a bright 632nm laser with a four point alignment system to maintain accuracy and calibration.Made of 6061-t6 aircraft aluminum alloy, they are engineered to withstand tough conditions.The 1.25oz kt-6132 model comes with a rail mount to fit virtually any weapon with an integrated rail.The 1.6 oz model kt-6332 has an integrated rail mount small enough to fit most, even compact, pistols.They operate with an on/off switch or the detachable pressure pad switch.Power Switch: On/Off and Pressure PadWavelength: 632 nmDot Size: .23" @ 10 ydsPower: 5mWRange: 12ft Vertical/12ft Horizontal 100ydsWeight: 1.25 ozBattery: LR44Laser Color: RedFirearm Fit: Pistol with RailFinish: Black Matte AnodizedMount Type: Picatinny