from what ive seen in general anime/game "replicas"
mass produceds look like crap and rarely meet any of the specifications
case and point, cloud's angeal buster ff6 "replica"
looks like some sheet metal riveted to a stick
i doubt any mass produceds will have the transforming
maybe an uber expensive limited/special edition, but not the normal ones
i looked at the link for the plastic one, you would have to ask the manufacturer to know for certain, but it does look like it might piece together like a power rangers super weapon
if not, final fantasy, and gunblades have a big enough cult following,
that im sure someone made a high grade true replica by now