I have two used but like new N.V.G., $1,800 each. 4th Gen. Star Light, very good shape and condition. All optics, lenses, intensifier tube and lenses plus focus and are clear. One NVG has two (very small) dots in the upper right hand corner. This is covered in the Operator's Manual, Chapter 1.5 it came that way new. They each come with a head mount for immediate use and each come with attachments military helmets or bump helmets so they can be flipped up away from your eyes. Also one Operators Manual for operation, maintenance, and Troubleshooting With over a hundred pages. Plus one counter weight . These NVG have low hr. and work perfectly. You do not have to have head support to use these, You can hold these in your hand and just use them like Binoculars. 1,800 each or 3,600 for the two of them. I would like to see them go to a Search and Rescue Team or Volunteer Fire Department. There are Fed. Laws stating they can only be sold to American Citizens in the U.S.A. Dave