He does state...
"ONLY MADE IN CHINA IS STAMPED ON HIM SO IM NOT SURE WHO MADE THIS GUY. HE COULD EVEN BE A ONE OFF CUSTOM AS I CANT FIND INFO ON HIM"
...so he has made some effort to find out. Plus there are enough pics of the item. I don't think he's deliberately trying to mislead.

You can't expect the average seller to know what is fake and what is real; most only sell on Ebay casually.