NVS 3X Military Lens   A high performance Galilean afocal telescope, the 3X Military Lens with F/1.5 optics mounts to the objective lens of many night vision devices with 1x magnification to convert them into 3x scopes or binoculars. It can be screwed into PVS7 objective directly or attached quickly through removable adapters with rubber tightening rings to NVS7, NVS14, many US made PVS7, PVS14 and some other models.