my tech put in, new piston,gears,barrel, hop, motor, wires and converted it to deans, i wanted it to be solid internally before i start working on externals and its reaching 60-70 meters with a very nice ROF on a 7.4v so im happy
no idea, i didnt really ask, he always sorts out my rifles so i just kinda send him the rifle a budget and expect it to come back shooting like a dream