I took it back. The owners are good friends of mine. They had never heard of a counterfeit scope. He looked me straight in the eyes and said he didn t know. I believe him. I then showed him the web site about counterfeit scopes. They could not believe that copies are being made of almost all makes of scopes. Anytime there is a scope that does not have a serial number or a mod no. on the bottom side, under the turrets,it s probably counterfeit. They gladly refunded me my money. I guess the old addage,"buyer beware" is still in effect.