As a firearms instructor, your job is to teach students how to use firearms responsibly or train personnel or customers on how to use specific firearms. Firearms instructors can work at shooting ranges, weapons manufacturing companies, or government or law enforcement agencies. Although your particular responsibilities differ depending on the field in which you work, most instructors’ duties are similar. You may oversee police academy recruits during training, work with private security companies to lead coursework, or teach citizens on how to use guns.