Kind of hard to make it more attractive when I don't know what design you're aiming for, if by attractive you mean "more M16ish", then no, I won't change it.
There are enough crappy M16 replicas on this site as it is.
Real nice and pretty, works well too. The only criticism I can think of is that its so damn big and that the barrel doesn't work like a real tilting barrel (not trying to be a realism-whore). You definitely deserve a ten though
Not as good as some of your other releases, also, why does all of your rifles have drag-out mags? Is it that hard for you to make a mag release button? Also, the bolt mechanism breaks reeeeeeeeeeeally easily, you can barely unlock it before it breaks. You get a 5 though because I like the recoil mechanism
Because I'm not gonna finish it, I thought that was obvious enough
I'm just bored with the design so I though I'd release it instead of just letting it sit there and rot