I just got one too!
Yes, it comes with a 380mm and 700mm barrel. Just took it out to chrony and make some adjustments. Shot it straight outta the box after putting a scope on it and cleaning the barrel. It comes with the 380mm barrel mounted, so that's what I shot. I like it so far.
Main differences are; Pictatinny rail, barrel mounting screws are on both sides of the receiver, no longer through the top having to remove the scope and a new magazine where the 'lid' comes off for loading....and of course the Yellow Jacket Laminated stock.
Not trying to steal this thread, just joining in the joy....oh, and the UPS guy ran for the hills....apparently he has delivered one of these before.
mike