Vz. 50



The '''Vz. 50''' (also known as the CZ 50) is a Czech made semi-automatic pistol. Vz is an abbreviation of the Czechoslovakian term "vzor" meaning model.

Design
After the Second World War, Czechoslovakia's Ministry of the Interior requested a new pistol design from Česká zbrojovka Uherský Brod. The resulting gun was chambered in .32 ACP and designed by two brothers Jan and Jaroslav Kratochvíl. It combined elements from both the Walther PP and PPK. The pistol is fed from an 8-round single-stack magazine, located within the bakelite paneled grip. Small fixed sights are located on top of the slide. The pistol functions via the blowback principal - recoil causes the slide to move backwards, thereby compressing a spring around the fixed barrel. After it reaches the end of its rearward travel, the recoil spring returns the slide to its forward position, stripping and chambering a new round from the magazine as it does so, rendering the gun ready to fire again. Hammer and trigger operation is double-action - that is, the hammer can be cocked and released by a squeeze of the trigger.

Manufacture
Vz. 50s were sold commercially but most were distributed to police agencies under control of the Ministry of the Interior. They were produced initially at Strakonice and later at Uherský Brod. Manufacture ended in 1970.

Serial numbers
Serial numbers start at 650001, continuing from the discontinued vz. 27 serial number range. Pistols manufactured at the Strakonice factory fall in the 740000 range. Pistols manufactured at Uhersky Brod have 5 digit serial numbers preceded by a letter (which may change in the middle of a number series).

Date stamp
The last two digits of the year of manufacture are stamped on the left rear of the slide next to the proof stamp (a lion superimposed on an "N").

Government property stamp
Vz 50s bearing a stamp of crossed swords indicates they were government property.

Variants
In 1970, an update of the Vz. 50 was released with minor cosmetic changes and internal improvements. It was called the Vz. 70 (also known as CZ 70). Changes included:
 * New grip shape with a larger recess (Called the "tang") for the web between thumb and finger.
 * New grip pattern using a grid of dimples instead of grooves.
 * Top of the slide is engraved with a fine wave pattern to reduce glare.
 * Serial number is stamped on the slide under the ejection port instead of below and behind it.
 * Slide serations are wider and there are more of them.
 * Take down lever has a cross hatched instead of grooved surface.
 * Larger hammer with a hole in it.
 * Smaller magazine release.
 * Magazines have new base with a more angular and less curved shape.