[Weapon] Hk 33

Hi everyone
When playing on mec side i'm always getting upset from firing g3 on close distances, because of that cosmic recoill and one day i thought about making something that could replace or be an alternative to g3. My choice turned out to be hk 33, because mec is using other hk weapons and hk 33 has caliber (5.56) like e.g. m4s. I've started working on model some time ago and i think i making something wrong, but I don't know what.

Here are some screenshots from blender and please if you can tell me what can I improve in that model:










Small bonus some screens from my wip map: