Corvid -
Yeah I went back and forth about getting the Weihrauch, HW44 or the Ataman, AP16.
I went for the AP16, because if its more resembling of a real gun, not so much looking like a Buck Rogers space gun. Plus, there's no (VERY little) plastic in/on the AP16. And...since I have an HW100 Bullpup rifle, which has the same grip piece as the pistol, it doesn't fit my hand very well. To be comfortable, I had to remove a far amount of plastic at the lower lip of the grip so my little finger has a solid purchase. If you have a larger hand, be prepared to do some grip reshaping.
Happy with my decision getting the AP16. Best of luck on your choice.
Mike