the figures correspond to the format 74mm. But since these are primarchs and they are much larger than ordinary people, their real size is under 128mm (t-pose).
dear friends, I want to warn you this is not a game scale. In addition, there are no pre-support (I still have not learned how to make them).
If you need a game format, then I advise you not to download these models yet (they are designed for a collector's scale).
I will release game formats soon.