First of all, it looks pretty good, but you could be using your polygons elsewhere to give the main portion some depth, because right now it looks a bit like a fat piece of cake cut to shape with a knife.
however, it's just a general rule of teh internets not to display your own work in another person's thread; this kind of inadvertent spotlight-takeover is called thread hijacking. >.>
My point is that your model there has well over enough potential for its own thread (I've seen threads for much worse
)—not to mention that you would have everyone commenting on only your work, so you can get more tips on how to improve your model and future work.
Quote: "BTW how did you UV map the texture so good? I know the basics, but all I can UV map is simple shapes. This I don't get."
I didn't
Since I made sure that the geometry matched up as good as possible with the picture I just projected the texture on the YZ plane; the edges of the model have stretched pixels all across them.
You just can't see it in that picture... >.> As for the barrel, magazine, trigger and cocky-thing, they either had enough geometrical detail to go with only a shiny gun-metal material, or weren't important enough for having any texturing detail on them. The handle and chamber (which are CSG) are the only parts of the shotgun that actually have a texture on them.