S.C. Code Ann. § 16-8-20: Teaching or demonstrating use of or making of destructive device; penalties.

(A) A person may not:

(1) teach or demonstrate to another person the use, application, or making of a firearm or destructive device which is capable of causing injury or death if the person knows, has reason to know, or intends that what is taught or demonstrated will be employed unlawfully for use in, or in furtherance of, a civil disorder; nor

(2) assemble with one or more persons for the purpose of training, practicing, or instructing in the use of a firearm or destructive device which is capable of causing injury or death to persons if the training, practice, or instruction is used in furtherance of an unlawful purpose or a civil disorder.

(B) A person who violates the provisions of subsection (A) is guilty of a felony and, upon conviction:

(1) for a first offense must be fined not more than five thousand dollars or imprisoned for not more than five years, or both;

(2) for a second or subsequent offense must be fined not more than ten thousand dollars or imprisoned for not more than ten years, or both.