https://youtu.be/G64SHKQTUZE The CZ-531 was developed as a replacement for the vz.52 pistol in 1953. Even as the vz.52 was being adopted, the Czech military knew that it wasn’t a great gun, and they wanted a long-term replacement based on the TT33 Tokarev design. There were two pistols put into development for this; the CZ 531