Somewhat not exciting, but what you see here is a finished (tabletop quality at best) Victrix plastic six pound artillery piece. They're whores to assemble, but seem to paint up rather quickly if you're not a Nappy Nazi.
I don't really know what color the guns hardware is supposed to be. The box art appears to a dull brass, but some internet pictures are a brighter brass or black. I'll do the other guns the latter two, until I find out the toothy truth.