The NanoAAB is the highest quality MOSFET with Active Brake. It is resistant to bad weather conditions. The use of new technology has allowed us for the maximum miniaturization. It has 2 functions. First of them is the MOSFET which removes loss of energy which occurs while mechanical trigger contacts touch each other. It protects your AEG by eliminating trigger burn-out. The second function - active brake, stops the motor immediately after releasing the trigger. It makes rising of realism and increasing gearbox lifespan. The circuit is compatible with all the replicas, also the tuned ones. It works with 7.2 V packets without any problems. It doesn't consume energy while stand-by. Functions: It eliminates any loss of energy which occurs while mechanical contacts touch each other. It also makes sure they won't burn unavoidably - the average life of mechanical contacts is 1 year. Thanks to this electronic circuit the battery energy is not lost while burning contacts but directed straight to the motor. In this way we get bigger rate of fire which results in quicker reaction of the trigger. Active Brake The motor and gears at work gather in the kinetic energy. This energy depends mainly on their speed. The maximum speed is reached after 4 shots. For this reason when you release the trigger, the motor will not stop immediately - the energy which is accumulated in it, depending on the amount, allows on few extra shoots. Active Brake functions: 1. Using AEG rifles shooting on SEMI (single shot), the brake will not allow to compression spring after the shot. The piston will always stop at the front position, therefore increasing gearbox lifespan. 2. To increase realism. After releasing the trigger in real guns extra bullets are not fired, as happens in AEG replicas. We do not waste ammunition.