For users of the version 3 gearbox on their AEGs, Gate Electronics got the Titan V3 ETU for your use and here is Antre du Dingo Dingchavez with a review of it... "Hey guys, let's discover the brand new Titan V3 by GATE. More than a regular Titan for V3 gearbox, there's a new sensor system here ! Thanks a lot to GATE and Airsoft Entrepot on this one!"