This was quoted from promods tuning guide
"V3 parts include the RED firing can and the voltage regulator. The firing can has 1 single port on the back to slow down the bolt's forward speed. This allows the marker to shoot slightly more fragile paint, at the expense of efficiency."
"The voltage regulator is simply a mosfet that limits the current, given a certain voltage. This make the marker dramatically more consistent with both alkaline and lithium batteries. The reg should be installed*between the board and the solenoid, NOT BETWEEN THE BOARD AND THE BATTERY."
TCP LANSING/ GRAND RAPIDS