So, I got an AEG (lancer tactical LT12) a few months ago, and there's been numerous issues with it, including the gearbox seizing up, firing multiple BB's at once, making a terrible noise. And after many attempts at fixing it, including replacing the piston, the spring guide, the battery, a whole new set of gears, a new motor, replacing a mechanical trigger with an ETU and a whole new gearbox shell, it's finally working, fires accurately, consistently, has a nice sound, however on semi auto I've noticed it fires auto from time to time. Not often enough to cause a problem, but I was wondering if anyone had any ideas, thanks!