S.C. Code Ann. § 16-23-220: Unlawful transportation of machine gun, military firearm, or sawed-off shotgun or rifle within State.

It is unlawful for a person to transport from one place to another in this State or for any railroad company, express company, or other common carrier or any officer, agent, or employee of any of them or other person acting in their behalf knowingly to ship or to transport from one place to another in this State a machine gun or firearm commonly known as a machine gun, military firearm, sawed-off shotgun, or sawed-off rifle, except as provided in Sections 16-23-250 and 23-31-330.

A person who violates the provisions of this section, upon conviction, must be punished pursuant to Section 16-23-260.