Hi folks, my name's Rykko (it's a nickname, don't ask what it even means) and my account here is mostly dedicated to the Gunbucket sub-category. My experience is little, but my primary contribution would be the SKS31 here below:
This drawing seems to be a nice one (although it also seems to be a mod. of someone elses work, which usually helps in such situations). If it's a depiction of actual weapon in actual configuration, then I suggest You'd rather post it in Gunbucket thread or Beginners Forum.
(And credits ought to be in chronological order, so rather: Raspingleech, Rykko20)