Okay I have two questions, I've uploaded pictures of my airsoft gun, the guy I bought it from said it was a CyberGun Colt M4 Or something, and I have a Hi-Cap with it as it is, but I want to know where online I can buy mags that will fit this exact gun? Either it be Mid Caps or Hi Caps, preferrebly hi-caps. Alright now for the second question, this might be a little hard to understand but , which rail system will fit on this gun? Because I think that you can just put the rails on the original hand guard the gun comes with, except for switching the whole hand guard to a different one and have to have a battery box on the side and whatever. But on this gun it has holes on two sides of the hand guard, Im guessing you can put rails here somehow? I've uploaded pictures of the hand guard for ya. I want to know where online I can buy these rails for this gun and how you can put them on. If you have any questions on my questions please ask if you didn't understand fully. Thanks!