As the governing body of IPSC shooting in the United States, USPSA provides a wide range of competitive opportunities for shooters with regulated competition in six distinct divisions. Each division within USPSA is determined by the kind of firearm used and ranges from production guns, the “stock cars” of the sport, to fully customized open guns that are the Formula 1 cars of Practical Shooting. The following is an explanation of the six divisions within USPSA.