Do you remember the "Liberator" pistol? Its chambers a crude single-shot .45 ACP used during World War II. The gun was intended to be used among allied resistance fighters in occupied territories. Its small and easily concealed. When Heizer Defense came out with its pocket pistol, I wondered if they were inspired by the Liberator. Originally, it chambered a .45 Colt round and a .410 shotshell. HD went on to modularize it so it can fire a .223 Remington and 7.62x39mm via barrel assemblies. Yes, you can change barrels and calibers quickly. -This single-shot .410 handgun is simple and robust...