If they put a crocodile trailer on an M4A4 then they’ve cocked it up right away! Should just be a standard M4, so either they’ll use the existing plastic kit with either plastic or resin add ons (boo, it’s rubbish..), bring out a new plastic M4 (very doubtful), have this as a fully resin kit (no issue with this) or use their M4A4 kit (wouldn’t put t past them..).