Complex sentence: Manufactured by the Czech Republic firm of Ceska zbrojovka a.s., the CZ-83 is the civilian version of the very similar CZ-82, which replaced the 7.62x25 mm CZ-52 pistol in Czechoslovakian military service in 1983.
Split into simpler sentences: Manufactured by the Czech Republic firm of Ceska zbrojovka a.s., the CZ-83 is the civilian version of the nearly identical CZ-82. The CZ-82 replaced the 7.62x25 mm CZ-52 pistol in Czechoslovakian military service in 1983.