The EOTECH ClipNV-LR Clip-On Night Vision Device was developed to provide users a rifle-mounted solution with unrivaled target detection and identification capability. The ClipNV-LR is designed for use with medium- to high-magnification (4-20x) day sights to provide targeting at night while maintaining the day optic's ballistic zero. Simple on/off, manual gain control, and focus knobs are ergonomically positioned on the device. It attaches quickly and simply to Picatinny (1913) rails in front of an existing day optic. It features an integral auxiliary Picatinny rail for installation of accessory equipment such as IR illuminators/designators.In the BoxEOTech ClipNV-LR Clip-On Night Vision DeviceProtective CaseQuick Start GuideTechnical ManualNeoprene HoodLens Cleaning KitEOTech ClipNVSpecsFigure of Merit2376 MinimumField-of-View (@ 1000 Yds)8.5 TubeImage Intensification Tube: ESA Gen III White PhosphorShiftsMax. Allowable Zero Shift: