Quote Originally Posted by Magnus View Post
Punch/Counterpunch has the prime armour because he's a Power of the Primes deluxe, and the gimmick for Power of the Primes deluxes is to be able to 'wear' prime armour on the chest or to have it attach to the vehicle mode. As you observed, both modes have chest/back panels that swing open to reveal 5mm ports; those are actually meant for prime armour to be attached to the chest.
The Prime Armour in general is pretty daft - but it can work out ok on this one. Especially since it doesn't need to do double-duty as a foot/hand, you can just pop the two thumbs off altogether which leaves this one looking a lot like a jetpack - that'd be helpful in covering up the fairly obvious 'other robot' when looking at this figure from the back.