[Kurona]

I think I've hit upon a realisation: we're taking the 'weapon' part too literally. Is it not more likely that 'weapon' is nothing more than the name of the mecha in this season?

Furthermore, given that the two 'series' are separated to a degree by their item codes and that there's only four of them in total, I don't think these are separately sold versions of the Kirameiger's main mecha; rather, I think that like previous seasons all five will form one robo that will be the big DX Kiramaizin as in the first listing... and these two 'weapon series' will be the auxiliary mecha of the season, with 01 and 02 making up Q1.