Well here's a second go. It's a WIP

http://i35.tinypic.com/25a0pon.png
http://i35.tinypic.com/2dqshsw.png

Well it might look a little bland from far away, but there's some details. I just need to work on the lighting and materials. Any comments?

No, no comments.

The holster looks odd, like it was just hastily added or something. Also the aiming thing looks too far back. GOOD JOB MENG.

The foregrip/pump is way too small. The barrel also appears to be unnecessarily long.

I'm not a fan of the iron sights. I don't like how the rear sight is in the middle of the barrel (maybe it'd look better if the rear sight is placed at the central ring?). Plus, maybe it's me but they look really tall, too.

The last flaw of the day is that the ring and the pistol grip are not attached, which isn't a bad thing, but the pistol grip isn't in any way really "morphed" on to the buttstock, so it looks more like it was just placed there like a last-minute idea. Personally, I think you should remove the pistol grip and raise the back of the buttstock and increase the size of the knotch where he hand should be.

Quote from American Patriot

The foregrip/pump is way too small. The barrel also appears to be unnecessarily long.

I'm not a fan of the iron sights. I don't like how the rear sight is in the middle of the barrel (maybe it'd look better if the rear sight is placed at the central ring?). Plus, maybe it's me but they look really tall, too.

The last flaw of the day is that the ring and the pistol grip are not attached, which isn't a bad thing, but the pistol grip isn't in any way really "morphed" on to the buttstock, so it looks more like it was just placed there like a last-minute idea. Personally, I think you should remove the pistol grip and raise the back of the buttstock and increase the size of the knotch where he hand should be.

Yeah, 'tis true. I just slapped the grip on there just so I could post this. I couldn't even smooth it because I did a spline trace. I'm probably going to scrap it and remodel that part.

As for the other parts in your post, I almost exactly traced it to a real shotgun. The proportions are supposed to be completely realistic. Although, at the end I'll probably just fix it to make it seem more proportional.

Thanks for the comments so far. New update will be ready later.

I've never seen rear sights on the barrel before. Most combat shotguns come with a lot of rails and hooks and shit for tacticoolness. What you made looks lore like a hunting shotgun. I'd make a completely new stock if you have the time and will. It's pretty disproportioned also.

Here's an update. I removed the old iron sights, tweaked the front a bit, and redid the grip. I'll be working more on the grip right now.

Mind posting the reference images?