How can I pass information from child to parent?

Hi! I have some variables of my weapon in my actor child, but how can I pass information of this variables to other variables in his parent?

I mean from here /

To here

Since the child is already inheriting the variables from the parent, you should delete the separate ones from the child and directly use the inherited variables to store the values of the child class.

To set different default values for the child, click the Class Defaults button on the top toolbar when editing the child blueprint. The details panel on the right should display all the variables it can access from the parent.

You can also show the parent variables in the left panel by clicking the eye icon on the top right of it and enabling Show Inherited Variables.

To supplement Rectus’s answer with some screenshots: Parent and Child Blueprints in Unreal Engine 4

Thanks a lot!