Okay, allow me to preface this with the statement that upon further examination, or perhaps just getting used to them, the HBG size difference tends to be less noticable. There are only one or two sculpts which I might not use based on size alone, but not as many as I first thought. I stand (mostly) corrected by IL.
That said I have some pictures for comparison purposes anyway. And so all you people can see how very attractive the pieces are.
First is infantry. Left to right: HBG US Marine (w/flamethrower), HBG US Marine (w/Thompson), OOB US, OOB Japanese, HBG US supplemental set infantry.
(For all those in Rio Linda, OOB means Out of Box, or that came with Axis and Allies.)
FYI The OOB pieces are primed black for me to paint.
I actually had a better picture but the size was much too large for the attachment limit, but this one is nearly as good. It is extremely difficult to tell from the picture but the far right unit (HBG supp. inf.) is noticeably smaller than the others. If you hold it in your hand. The base is also a bit smaller than “normal”. However, it is still a good sculpt and you could paint it up and not tell much difference. The HBG Marines are pretty much exactly the same size as OOB infantry, and they look fantastic. Love the Thompson.