Who designed the guns used in the "Limited Class" and "Open Class" pistols offered by A & B?
A &amp; B High Performance Firearms A & B High Performance Firearms was a competition pistol manufacturer. Products included the "Limited Class" and "Open Class" semi-automatic pistols, both available in .40 S&W and .45 ACP. A & B sold directly to consumers.
QX-04 The QX-04 is a semi-automatic pistol in limited use with the People's Liberation Army (PLA) and various Chinese police departments. Chongqing ChangFeng Machinery LTD.CO designed the gun under China South Industries Group Corporation in June 2010. It is primarily targeted for international market and exportation.