[BigHanksCustoms]

To my knowledge none of the IM/IM2/Armored Avengers iron Man figures can look up.

The WalMart RDJ head figure has a slightly different ball joint on the neck.

The Ball joint is a little smaller to allow the owner to pop off the IM head and swap for the RDJ head.

I am working on a MkVI right now (with Loki buster weapons system!)

The ball joint on that one is larger and doesn't allow the head to pop off without applying hot air/water. They all seem to have the swivel/ball system, but the balls seem to be different diameters.

I'll compare my MkIV and Stealth IMs, same mold but might have the different neck systems.

Anyway, enough rambling, I may have to preorder the Avengers case too. I wonder if they are on WalMart.com yet.........