Maybe try and make the muddy marks on the metal make more sense, for example now there's a great deal of it around the handle on the right side yet none actually on the handle which would be hard to pull off in real life. Also as spitfire said you could add a little more variation in the actual metal, spec and diffuse…
Definately helps, ive been thinking i should model the entire bipod and the ammo box to make the overall look more interesting, it would add more variety. Alot of the details that will be added are missing are probably because i didnt make a normalmap yet, other than some fine surface stuff. So far i havnt spent near…