Dude, I don't mean to sound like a jerk here, but why don't you start your own thread on your build? Obviously you're talented and yours is far more detailed than mine. You'd probably be better off making it on your own.
Sorry, it's my first cosplay-gun and first replica at all — I don't think that it may be more than little experiment and few photos.
And your AER9 is awesome — coloured rifle looks like real cinema-shots.
PS: my English is'n so good for own thread