For those who miss Brian at Echo1, he's back with his latest howto video which shows how to adjust the AK motor height and knowing how it is fixed. Apart from the adjustment, he shows you how the motor and the gearbox interact with each other so you'll be able to understand how it works and be able to make the proper adjustments. As always, AK motors are usually for version 3 gearboxes which not necessarily be AK airsoft guns as the gearbox is also used for the AUG and G36 AEGs.