Gunsmiths repair and modify rifles, shotguns, and pistols by firing weapons to diagnose issues, mounting scopes, and reboring barrels to change calibers. They typically learn through an apprenticeship with a high school diploma and possibly technical college education. Salaries range from $29,890 to $73,230 annually depending on an employer's size, location, and an individual's training and experience, with most gunsmiths finding work at personal goods repair shops or electronic equipment maintenance companies.