I would make colored shaded outlines now that you made the background transparent, you dont have to, im just saying it might look a bit better..

I don't know much about guns, and that's why I made the barrel made of brass, but it seems ,after a quick research, barrels are not made of brass, I guess. God knows, anyway it's old brass, at least it supposed to be.

I must say I am a fan of the rifle's texture. Is that rust? Sorry if I'm wrong, I really don't know guns :P

Done, is it better now ?, that was my first aa so i didn't actually know what i was doing :),

the handgun corrected, "the browns" will be.

Thanks for the advice.

Though I'm not sure about the material, I love the texture of the rifles barrel. The browns look a bit boring compared to it.

What's the non-outlned grey thig hanging from the handgun?

Indeed. The exterior anti-aliasing is just thickening and blurring the outline, rather than smoothing any transitions.

Make the background transparent and take off the aaing on the background.. please.