The EoTech came in what appeared to be factory packaging and seems to work properly. However, the factory product identification label that is supposed to be on the bottom of the item is missing. In it's place is the handwritten number "18". So I figured that this was a counterfeit item. I called the factory, and after describing the situation to the rep and answering his questions about the actual product in hand, he determined that it was a genuine item. But he could offer no reason why the product label on the bottom of the EoTech had been removed - he said that all of them leave the factory with the label. So overstock.com, why are you sending out EoTechs with the factory product identification label removed. Something just doesn't seem quite right here.