Can anyone ID this E-11 and the helmets. The e-11 has a removable magazine with battery pack and a metal rod on the side of it that connects to the end cap. I know the 501st clone is a MR, and the Gen 1 clone is an EFX, and one that has been IDed as an Oakely.....as far as the rest ??? I've been offered this blaster a 12 helmets in a trade and am trying to find out exactly what I'd be getting, and if its worth my trade.