Solink AEG Professional Brushless Motor (Long / Short)Notable Efficiency: The Solink brushless motor is remarkably efficient. Even After firing 200 rounds of BB bullets, it still operates at a temperature approximately 10 degrees cooler than most brushed motors, keeping it cool like never before. That means that these magnets inside the motor can perform much longer in comparison with brushed motor before the torque starts to drop off. Extended Durability: Designed with a stationary coil, the Solink