176899 Model LR06B Quantity 1 piece(s) per pack Color Black Material Aluminum alloy Suitable Gun Type Compatible with the 20mm rail Field of View 522~532nm Laser Wavelength 20mW Specification Beam Mode: Point beam， fixed focal， continuous output; Effective range: Over 100m; Switch: press-button; Working temperature: 10'C~45'C; Service Life: 5000~10000h; Beam divergence: <= 2.0mrad; Red laser， small outside interference， high sensitivity， so it can catch the light track in the dim light source condition; Especially can see the light track and catch the spot place clearly at night as long as your eyesight can reach; Compatible with the 20mm rail; Twice oxidation electroplating process， smooth and with comfortable feeling Packing List 1 x Gun aiming sight with control switch (length: 40cm) 2 x Hex wrenches 4 x LR44 batteries 1 x English user manual