BT-4 ERC with apex, rip clip, ninja remote line, pure energy hpa tank.
fully automatic, accurate, mobile/semi light. Very customizable.
You have to open the board to change firing modes, loud.
My ERC is accurate, light if you have a remote line and never breaks balls unless your useing the apex with poor quality paint. there are countless amounts of custom features. anywhear from stocks to loaders. the only problem is there are no good iron sights but they are pretty cheap. I've gone paintballing with it 4 times and i have had no problems with it exept it runing out of batteries.
I suggesst getting this gun if you have been paintballing for a little bit and you are ready to move on to a better gun.