Best Red Dot For Under 200 Starting Airsoft, Need Help?

Starting airsoft, need help? - best red dot for under 200

As for what I buy, I was thinking about an M4, but perhaps an AK, if you imagine it. Items priced under $ 200. Looking around, I found the JG M4 S-System v2. I think that's what I like so far was the best.

Guns are really striking resemblance to what I'm looking for?
Which side should I buy? airsoftgi? AirSplat?
The accessories, too good to pass up?

If I have a clue as to what should I buy? I think I want red dot.