In this video from AirSplat On Demand, the G.E.C. or G-Generation Electronic Control Airsoft System from G&G Armament which will soon be available at AirSplat.com. This shows quick detach features for the pistol grip, motor assembly, proprietary stock tube battery, and the stock is adjustable to six positions. It also has an electronic brain, which in airsoft we now call it the FCU, in this case it's a micro control unit with BB sensor to stop firing the AEG when there are no BBs left. The system has lots of sensors and it's also a split gearbox technology.