Hey all. I just got my self a cz52 7.62x25. I was wondering if any of you have done any mods to this gun. Springs, grips, sights, so on. How have they affected performance?

I had one of those...many years ago. A facinating, well built pistol. Seeing that it was a roller locking design, and very overbuilt, I used it for handloading experimentation .

I started off with Unique and 110 grain M-1 bullets in cases formed from .223 brass... and started loading it up- trying to reach the point where the sights would regulate. Didn't have a chronograph at the time, but I eventually reached the point where adding more Unique didn't change the point of impact at 50 yards.... so I started over with WW 296. A co-worker who'd spent some time in the Yugoslav Army in his youth told me that 7.62x25 was used in submachineguns, and was loaded hotter than heck... so I pressed slowly on.

As I recall, I eventually made it to around 13 grains of 296 with the jacketed 110 RN. Made for a spectacular basketball-sized muzzle flash (in broad daylight ), pressure signs were looking OK, and it was hitting pretty close to POA. Kind of a Mini hand held T-Rex of sorts.

After about 300 rounds, the slide fractured at the thin area about an inch aft of the nose, which departed and was never recovered. The spring stayed in the remainder of the slide, with about 8 inches of it dangling out into empty space. It turns out that the CZ 52 has a weak spot, and I found it!

Porosonik.

Here in Britain myself and a colleague did toy with the idea of converting them to use 9mm Winchester Magnum cases appropriately loaded I'd add (to re-create the old 9mm Mauser pistol cartridge). But for a number of reasons the project didn't go anywhere other than the purchase of a VZ-52 and drinking cups of tea in his workshop area.

Shot a few of them back when they first were available over here and ammo was dirt cheap.

There weak spot( other then grossly overloading them} is their firing pins that were know to break.

I find them to be clunky but they are better then some and wouldn't turn one down if I needed a handgun.

I toyed around with one back in '05...I think, somewhere in that area. But I started by welding up the back of the frame so it would sit straighter in my hand (basically like the arched mainspring housing on a 1911) and raise the front of the pistol without changing my grip. Than I soldered a small chunk of metal onto the bar on the left side of the pistol that holds the slide open on the last shot, and made sort of a redneck slide release. I left the sights along and swapped the firing pin. I also honed all the mating surfaces and got the whole thing black teflon coated. I mostly used some hollow point ammo I found in a bag, think I bought maybe 500rds for $50 at some gun show. Anyways that pistol with the stock sights nailed many rabbits, squirrels, and a few birds. I wanted to toy around with the sights but just never got around to it. Ultimately it ended up with my brother.
One day I'll snag up another and do the same shebang, except with adjustable sights, a newer barrel and maybe some nice, ergonomic grips. With all those flat surfaces too I'd love to do a nice full engraving and hot blue. Just that I'd want to engrave it and currently incapable of doing so!
And by the way congrats! You got a fireball breathing high velocity pistol!

I have one CZ-52. I installed wooden grips.

I bought it when I was student without money. This pistol was originally designed in 9x19, but after Warsaw pact and normalizing ammo with Soviet Union in Czechoslovakia it was redesigned for 7.62x25 Tokarev. It is designed as back up or officer/tank driver etc. pistol with no aim at life. Common life what I heard is about 3 000rounds, mine is about 2 thousands and area where rollers are locking is pretty worn (I shoot old military ammo most). After 15 years, I see that there is no point to tune this kind of pistol.

Jiri