How do i fix my echo 1 mp5 pdw?

Question

When i pull the trigger on my airsoft mp5, nothing happens. Im sure it's not the battery because my other gun uses the same battery and its charged. I also checked all the wires from the back and from the motor. I need help PLZ!!!!!

Answer 1

Magazine isn't feeding right?

Gears came loose?

Open up the gun, and look in the gearbox...see if anything is loose.