Ares WA2000 airsoft question?

Depends where you purchased it. Some places have a scope and/or mount stock and others don't. I would wait till its ordered and see what you need because I'm guessing you didn't do a whole lot of research on previous site orders. (that will answer your question) If it needs a mount you can wait the three days or go to an army surplus store and buy one. They have gobs of stuff. You made a decent choice for the gun, I have one and enjoy it. Mine came stock with a scope.