[ThunderCats]

So, i bought this gun from the classifieds, and long story short, it doesn't shoot.

This is my first AEG, so I wasn't too sure what to do, so i disassembled the gearbox, and found out nothing was wrong in the gearbox. But when i pull the trigger, all i hear is a little twitch (like if the battery was barely charged). Even when i fully charge the batteries, same result. I have no idea what is wrong..

thanks in advance for any help