You will get plenty of replies on the legalities, but suffice to say that it is better for your image to wait the year.
Besides, during that time you'll be able to visit fields, meet players, stock up on gear and so on.
Buying a spring sniper riffle, especially a cheap clone, is bad mojo for a first gun.
Ask politely at games and you'll be able to fondle just about any gun. That will help you find something you like.
Also, check this link for classified prices: