The main giveaway here that this coin is not authentic, is that for this particular design the genuine coins are supposed to be silver, where your coin clearly is not silver.
Such wrong-metal replica "coins" are often sold in the markets around Kabul, where Westerners are likely to visit. We've seen quite a lot of such pieces come onto the market since Western involvement in Afghanistan began.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis