[Bellerophon]

Electric blowback is really weak and can potentially cause a lot of mechanical problems, don't bother with it.

Edit: Also, I recommend saving up for a metal bodied one. You'll find that in the heat of the moment, you'll often drop your gun or hit it against something, with a plastic gun your choices are either handling it very cautiously (which limits your mobility and gives you more crap to worry about) or you risk it snapping like a twig when it takes a hard drop.