Call me old fashioned but I am still just shooting a 3" mag with just a bead on the front of the barrel. I like to keep it as simple as possible. The more you have on your gun the more you have a chance of something going wrong. I don't think you need all that gun for a turkey but I am sure when they come out with a 4" mag they will be going off the shelves as fast at they can replace them. Sorry to hear about the scope eye, I know that hurts!!!!