I have a small suggestion. And it is only a suggestion.I think the weapons should not go according to the popular style of painting. If you understand a soldier need what kind of weapons that I think you can make a very good gun.
I like it. It looks like the FAMAS and FN F2000 had babies... Just as long as it didn't get the F2000s forward ejection system (and it takes standard AR mags), I'd want one; the FES has to be one of the dumbest systems ever. That's just asking for a jam. Perhaps have the extractor pull the spent casing backwards as the bolt recoils and then drops it out the bottom?
So I did. I'm not an AR fan, so I'm not familiar with which is which, but there are a number of rifles out there that only accept non-standard magazines and only in the round count allowed by the manufacturer (such as the Ruger Mini-14, which will only take a mag with a max of 20 rounds, whereas with rifles that accept standard mags, you can get anything from 20 to 100).
Very well put and very true. That was also the same standard for the M14 however if we are talking about military grade issue rifles here chances are STANAG magzines will be the one size fits all (not counting soviet esque weaponary of course)