Golgy A Sunday Gamer goes over an E&L AK74MN Gen 4 AEG (S-AEG in Germany) that is equipped with a Variohead, Pro Hop-Up and the Begadi CORE EFCS/MOSFET. The Version 3 gearbox has 9mm bearings and has solid 18:1 steel gears with gear clip, and high torque motor with neodymium magnets. Its power can be adjusted quickly without needing a spring change.