Which brings us to the Walther P38, another standard-issue sidearm for German officers in World War II. The P38 appeared late in the war, replacing the Luger. The company Walter Arms claims to have invented the first semiautomatic pistol. Even though the original Walther factory was destroyed in the war, the company is still producing guns, including the P38. They also make a version of the Uzi, an Israeli weapon.