Streamlight ProTac Rail Mount VIR USB Pro 1100 Lumens LED Weapon Light Black. Features a cutoff that prevents unintentional visible illumination when operating in IR mode. Its Jack-Cap tail cap switch offers operational switch redundancy pushbutton operation or remote pressure switch operation. The rail clamp is designed to securely attach to rifles carbines and submachine guns with a MIL-STD-1913 rail or with the included M-LOK mount allowing for alternative mounting options to M-LOK and M-LOK compatible rail systems. The light is powered by (2) CR123A lithium batteries or (1) Streamlight USB rechargeable SL-B26 battery pack. Specifications for Streamlight ProTac Rail Mount VIR USB Pro 1100 Lumens LED Weapon Light: Manufacturer: Streamlight Light Output: 1100 lumens Bulb Type: LED Battery Type: Lithium Ion Color: Black Beam Distance: 400 m Battery Life: 14 hours Water Resistance Level: IPX-7 Features of Streamlight ProTac Rail Mount VIR USB Pro 1100 Lumens LED Weapon Light 1100 lumens and 2300 mW IR provides illumination for various conditions Jack-Cap tail cap offers push-button switch and port for a remote pressure switch Mounts directly to guns with MIL-STD-1913 (Picatinny) rails or M-LOK and M-LOK compatible rails Rotating head allows for precise placement next to the rail 2-meter impact resistance construction extensively live fire tested IPX7-rated with standard push-button switch installed; waterproof to 1 meter for 30 minutes IPX4rated with the remote pressure switch installed for water-resistant operation Package Contents: Streamlight ProTac Rail Mount VIR USB Pro 1100 Lumens LED Weapon Light Gun Light (1) SL-B26 battery pack USB cord M-LOK mount remote pressure switch mounting hardware remote retaining clips Streamlight 88139: ProTac Rail Mount VIR USB Pro 1100 Lumens LED Weapon Light Black