Harrington Products CZ-52 Firing Pins, Rollers and Extractors
Shop for Parts
Accessories
CZ-52 Information
Contact us:
Harrington Products
7726 State Road 26 East
Lafayette IN 47905
+1-765-589-9112
harringtonproducts@fpnmail.com
Ready to check out?
Further Information and CZ-52 Links
We have been doing this for quite a while. We have an FFL and do gunsmithing and other custom precision machining work.
Topics on this page:
Links
Below are some CZ-52 pages that we find useful and interesting.
Lists like there are hard to maintain — if you find any links that don't work, or if you have any suggestions of what we might add, please let us know!
-
Numrich Gun Parts Corporation
is a good source of replacement barrels:
http://www.e-gunparts.com/ -
Starline Brass
has 7.62x25mm Tokarev brass:
http://www.starlinebrass.com/ - For the maximum benefit from our firing pin / trigger conversion, we recommend you also install a heavy Wolff recoil spring, 16.5 pound or heavier, available at http://www.gunsprings.com/
-
The rec.guns FAQ on the CZ-52:
http://www.recguns.com/Sources/IIIC2f.html -
Here's a good article on CZ-52 firing pin
replacements, de-cocking safety tests
and the "pencil test":
http://www.surplusrifle.com/reviews/cz52firingpin/index.asp -
Very clear CZ-52
disassembly and reassembly instructions with
pictures:
http://www.surplusrifle.com/pistolcz52/disassemble/ -
Ed Buffaloe's page about installing the
Harrington Products Competition Firing Pin
in the CZ-52:
http://unblinkingeye.com/Guns/CZ52FP/cz52fp.html -
Ken Shackelford's page with 7.62x25mm Tokarev
reloading data:
http://members.nuvox.net/~on.melchar/tokarev/ -
Background and owner's report on the CZ-52:
http://www.alpharubicon.com/leo/cz52serger.htm -
A nice writeup on the CZ-52's
1950s design esthetic
and the heritage of the roller locking action
including Mauser, CETME, and the H&K G3:
http://www.gunblast.com/RKCampbell_CZ52.htm -
An explanation of the cryptic markings on
CZ-52s.
The rumors have been that they indicate
accuracy, but that's not the case.
Here's the explanation:
http://www.gunsworld.com/cz/52_us.html -
Bob Cromwell's page with descriptions of
how to remove bluing, how to parkerize metal,
and pictures of an M1 Garand assembly project.
http://cromwell-intl.com/garand/
Here is a description of some
9x19 Federal Barrel Feeding Problems
as quoted from the Federal conversion instruction sheet.
Our redesigned extractor mostly solves this problem.
Some CZ-52 pistols converted to 9mm NATO will show feeding problems. This is primarily caused by the fact that the 9mm NATO round is shorter in length than the 7.62x25 Tokarev round. There are 2 areas of concern: magazine feed lips and the way the extractor pushes the live round into the chamber.
Surprisingly the extractor is the main cause of feeding problems. The lower 1/2 of the front end of the extractor actually contacts the round, pushing it into the chamber. By smoothing and rounding the angled surface on the lower 1/2 only, the extractor hook will not disrupt the movement of the round as it jumps around the rim of the cartridge being chambered. To remove the extractor, use a small punch to drive the pivot pin through the slide. This will release both the extractor and its spring. When you reinstall the extractor and its pin and spring, check the firing pin to see if there is free movement by pushing on the rear end against the spring pressure.
Examine the feed lips of the magazine. Look for jagged or bent edges. The metal at the lips is heat treated, so you may not be able to bend them back without weakening them. It may be necessary to have a welder add metal to the leading edges of the feed lips. Excess metal would be removed by a Dremel tool.
