I heard about this particular scope on a gov't site. There were some grave concerns about the some thing call refraction of light through that particular model. However it was reputed to have some infrared characteristics which allow shooting long after shooting light was gone.
THis is why it is for sale at such a price. To pay fines and lawyer fees.
By the way do you have a contact number for this fella as I would like to develop an article regarding the extra ordinary capabilities of this particular scope.