Used my GHK M4 for the first time on Sunday at Bush Valley and I've got to say thanks to those who recommended it. It's awesome the 38 round mags can be a pain but I learned to change out mags early before getting into trouble lol. You can feel it getting better the more you fire it. It was cold on Sunday and wss still shooting fine. Need a scope badly and more mags oh and lots more gas lol. I will definetly get an aeg at some point obviously another M4 but haven't even looked at them yet needs to be all metal I know that lol.