Related Age-2DB runners ->
http://gundamguy.blogspot.com/2012/0...le-bullet.html
So Bandai removed/updated the Normal parts on the A and D runners and replaced B and C with E, F and G specific runners for DB.
Still curious on the purpose of the optional gates in the A runner for the head parts (no. 34 - 36). For Age-2's third wear or for the future mass-produced Re-GAge-2?