Okay, one more change. It's easy to tell the difference for me even on a stark white background now. If I go any further it'll be too gray and have too much contrast on a dark background.

Hm, you're right. I'm always afraid to brighten my colors even when it's extremely difficult to tell the difference on a light background, but I believe I've found some better colors now.

Thanks.

Hmm, the reason for the unclean line on the magazine is that it's supposed to have a little ridge on the back, but I suppose at this scale I don't really have to bother with that, since at 1:1 you can barely notice it and it just looks like it's messed up when you zoom in.

Yeah, the holes in the stock are supposed to be there. Here's a picture of the real thing.