MOSFETS were started being introduced for airsoft AEGs a decade ago and players can make their own MOSFETs following instructions from hobbyists. Now, major airsoft manufacturers are including MOSFETs into their offering, making AEGs more responsive and they even come with diagnostics. English Kiwi explains what these are for in this video, which we recommend beginners to watch... "This week I thought I could discuss what a mosfet is, and what purpose they serve in the context of airsoft guns!"