I have text the buyer and will refund his money. To all reading this; the optic is used and I provided all information I knew on the item. It worked when I had it and was WORKING just fine when he inspected it prior to paying for it. He has had the optic for over 24hrs. So if it only worked for 10mins why wait over 24hrs to contact me? Bottom line I have never and will never rip anyone off. Unfortunately he gets his money back and I now get a broken night vision that was in good working order when it left my possession.