I need some help on deciding on what KWA Gun i should get. My choices are the KWA KM4A1 and the KWA M4 RIS. And i can't decide which Gun is better if you guys could help me out on deciding which gun to get. I have done alot of research on these two gun for the past week or two. They are both two magnificent! gun's right out of the box. And could outperform any Airsoft gun going against it if you guys could help me decide. I would be more than satisfied i appreciate it thanks.