The four tips for building your self-defense system will ensure that your system is ready when your life depends on it. There are many videos on YouTube® that one can find about the various aspects of self-defense. A growing body of work is on building active-shooter kits or bags, setting up body armor, or building a firearms range bag. My analysis of these presentations is that they fall short in telling the viewer about some fundamental aspects of building your firearms-related kit. These presentations assume that the viewer