The water canon mini gun is coming along nicely but I was having a problem with where to fit the small 5amp battery. I decided in the end to fit it in the battery box as there is plenty of room inside them and they are easily removable. An XLR style socket sits on the back of the battery box so when the mini gun is mounted on the shoulder it is simply a matter of plugging in the plug. Another socket was fitted next to the rear coin slot which loops back to the RFswitching unit. When both plugs are connected I can control the gun remotely. As yet I have not fitted the servo that will pan the gun left and right.