@The Great Sephiroth - yes, it's a part of Weapons Pack 1.61 and I got it in my ServerPackages list. It's kind of strange because it's the only gun that has preview picutures missing in my INF (2013 edition).
@Bael - I know it's not a big deal but I'm just being curious why it happens to this gun only. I checked most of them and all seem to be fine. Also it's strange that only preview image is missing - the gun itself when loaded into game shows up correctly.
EDIT:
As I was browsing my INF install directory I noticed that there are some *.u files duplicated in there. Here's a screenshot that shows some of them (I'm not sure if I marked all of them):
These files have exactly the same names but they are not 100% copies (I checked that in TC). Could you tell me please if this is how it should be?
EDIT2:
I got preview of M93R working OK now. I just had to set
ZRangeHack to 'false' in my config file.