Quote: "That looks pretty high poly for what it is. For example your gun barrely only needs one height segment, not as many as it has"
I have to agree...
And some of mine C&C (see image):
-Green- there's some diffrence between your model's stock and the real one. Yours looks like it had 2 layers, which is wrong.
-Red- the thing-that-moves-while-shooting (dunno the name, sorry
) could be just a cylinder that is narrow in the top.
-Blue- The things like screws or thread (? dunno again, sorry for my crappy english) on the barrel could be done on texture or normal map, and the barrel itself looks like it had <8 sides. If it's true, then you should make it have more sides rather than screws on your model etc.
Anyway: It's good that it's not a cartboard cut-out even if some parts look like it.
Make games, not war.