Does anyone know where to find /purchase a non magnified objective lens assembly for a Star Tron MK-880, OSTI MK-880, ITT 6010, FLIR M3NV.  I have been contacting various vendors with no results.  If not how about other options for something that would work.  It may be easier to just put the tube in a PVS-14 kit.

Try B&H photo. They have sold many parts for those scopes in the past. I believe it uses a adapter for C mount lenses. I have seen them with what looks like a PVS-14 lens. I have never owned one so I am not positive if it takes a 14 lens but I think it might. I would think B&H photo could tell you more as this scope was really designed for photography and surveillance. It has many types of lenses and adapters made for it.

Thanks Dino1130!