Your mom is AP 2.
(I don't think I know you, but that really is meant in fun)
Point is, how the model was designed x years is sorta meaningless for rules questions, and "how it's modeled" is an invitation to convert, not a restriction.
Compare this with the bases, for instance, where it does say "the base it came with" not "however you modeled it".
Generic power weapons, with no other special rules, can be swords, axes, mauls or even lances, just make sure it's WYSIWYG.