This happened to a lot of people. Cryptic has all pre-order bonuses tied to the registration codes, which they supplied to the retailers... this is entirely Cryptic's screwup. Quite simply, they mixed up a crapload of registration keys and gave them to the wrong retailer.
That is what you were supposed to get... as a Turret, it has a 360 degree firing arc, and as far as I know, it's passive, so it fires on its own when something is within it's range. I believe it's mostly for shooting down enemy heavy torpedoes before they hit you so you don't have to switch from your main target to the torpedoes to avoid fiery death and destruction.
Oh but he did receive the promised product. A turret. They just failed to tell him it was a dime a dozen common item.
That's Why I made that last statement at the bottom of my post. I didn't want to end up getting flamed, because he was wrong about the item.
But if it really was his own fault...HAHAHA. Research man, Research. The #1 thing most consumers DON'T do before buying a product. That's why most people get scammed, and screwed over. Learn to read, Learn about the product before you buy it, and then make a decision.
I feel no sympathy for those that fail to understand what they are buying. 100% their fault ( in most cases )
I've got the same item and it does autofire at things within about 3-4 km. It takes up the tac slot, which kinda sucks, but hey, more dmg is better dmg right? especially as a cruiser, thing turns like a boat.