K'nex Machine Gun
The machine gun can shoot pretty far it shoots eight bullets in about three seconds. The trigger is attached to the motor so when you pull it , it turns on the motor. there is another thing which you pull to make it stop. Just make sure that you don't pull it to far or it will start spinning backwards.
This is the gearbox and the case that will hold the trigger.
this is the switch that will turn on the motor.
This is the sides and the wheel that holds the guns. make sure that the dark grey connectors are facing away from the motor.
Loading and Firing.
to load it make the guns face up and pull down the firing pins. the triggers should come into place when you pull it back far enough.