Talk:Mark 43/@comment-162.198.152.214-20160501171102/@comment-2106279-20160511232447

He builds new suits, each with some sort of upgrade, by every film. Come Avengers: Infinity War, he'll be using Mark 47. Even if that's not destroyed, he'll use Mark 48 if he has one. Even if Mark 45 still works/in near mint condition, he'll still find something new to add and create a new suit (Mark 46) which he uses in Civil War.

in Iron Man 2, when he made a new arc reactor power element, it was suitable with the Mark IV. But he still made a Mark VI with a triangular chest piece design regardless.