Alright... I've been shopping around for something that closely matches my real world platform (for obvious reasons), and for the money I have to spend, about $150, I was looking at airsoftmegastore and found the A&K M4 S-System Carbine AEG Rifle. Does anyone have any reviews on it? I've looked on youtube but you know youtube. 
If anyone has suggestions for the price range I'm working with and the M4 platform with adjustable stock platform please let me know. I'll do my homework on and see what I can do.