Most martial arts training includes a stick or knife as defensive tools, if they are not solely empty-hands focused. What we do is bridge the gap between empty hands and the access, use, and retention of defensive tools (mainly the firearm), as well as integrate the soft skills and broader principles that apply to self-defense situations and violence/criminality in general.
In short, we're not primarily focused on the "damage control" portion of self defense. Your existing training will serve you well, but this will be something new for you.