Action: single action, semi-automatic, roller-locked
Barrel Length: 4.75"
Overall Length: 8.25"
The CZ-52 was adopted by the military and police forces of Czechoslovakia in 1952 to replace its unreliable and underpowered CZ-50 handguns. The CZ-52 was produced from 1952 to 1954. This handgun has long since been replaced, and the lot of them surplused so that I could have one.
The CZ-52 uses an interesting roller-locking design, a la the German MG-42 and many HK guns, such as the G3. When fired, the recoil sends the slide and barrel backwards, locked together until the bullet has left the gun, and the pressure has dropped to a safe level. At that point, the rollers disengage, and the slide comes backwards, doing the things that any other handgun slide does. The roller locking system is very strong, enabling it to fire the relatively hot 7.62x25mm bottleneck cartridge, originally designed for various submachine guns.
Finally, every CZ-52 in existance is at least 50 years old, and all have seen at least some use, many quite a lot of use. As such, the decocking mechanisms on these guns are untrustworthy. It is almost as likely to fire the gun as pulling the trigger. My specific specimen of handgun has a decocker that works perfectly fine -- however, being an older, used gun which is known for having decocker failures, I have no intention on trusting said mechanism. Also, the firing pins on these guns were originally cast, making them brittle and prone to breaking if dry fired. Therefore, it is not recommended to dry fire them.