S.C. Code Ann. § 23-31-140
(E) A law enforcement agency or a private security company licensed under the provisions of Title 40, Chapter 17, may purchase more than one pistol during a thirty-day period as long as the following conditions are met:
(G) Upon proper completion of the application the dealer shall submit the original application to the division, retain a copy for his records, and give a copy to the applicant upon his purchase of a pistol. The application to be submitted to the division must be accompanied by a firearm transaction record properly completed by the purchaser and the dealer.
For purposes of this section, the purchase of a pistol does not include the redeeming of a pistol by its owner after it has been pledged to secure a loan.