First, well I'm in the military and one weapon I do know about is the M4 or it's brother AR15. It's all I ever train with. A other reason I want to get a AR15 so I can go to the range on my own, and get better with techniques. I want to purchase a firearm or two when I get back. Only difference I know about the AR15, is it doesn't have burst like m4. I also want to get a AK-47, and a simple sniper weapon for hunting. So I can just practice. Also would like get a classic revolver. Anyways where to go about purchasing firearms? local gun store, internet, gun shows? I don't want to be ripped off either, basically how do you guys go about doing your due diligence regarding purchasing firearms of any kind?