Even if you could make some profit, importing a gun into the U.S. can be quite tricky. You will need an importing FFL and an FFL in your state. You will also have to pay customs duty and airfreight. And Germany will want some money, too, for their export documents.
Anyway, the starting bid is Euro 1,100. Multiply it with 1.47 to get the US$ amount, add about $400 to 500 for the import fees and go figure if it is worth it.