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Night Vision Monocular Helmet Scope W/ Switch. New Design 6 Style Digital PVS-14 Tactical Night Vision Scope For Hunting Wargame gs27-0008. Night Vision is a precision electronic instrument used to observe the target in the night and twilight. In order to meet in a very low light intensity, night vision with infrared irradiation light source,… Read more Night Vision Monocular Helmet Scope With Switch