Not sure if this is the right place but How does one become an Armorer?

[Bugabear]

I'm interested in becoming an Armorer for movies and television. Does anybody know what kind of education one would need? Or the steps one would take to become one? I have some experience working as part of a backstage and technical crew for theatre, but nothing in film. I live in Vancouver, Canada, if that makes a difference.

Any kind of help you can give would be great. Sorry if this isn't the right place to ask this kind of question.