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Vz. 58

• easy
• Shop tier 2
• medium confidence
• Rifle
• surplus
• short stroke piston
• striker fired rifle
• tilting block

field strip ~2 min · reassembly ~3 min · detail strip ~30 min

Specifications

Model-specific safety

• The vz. 58 looks like an AK from a distance but shares no parts with one. It uses a short-stroke piston, a tilting locking block, and a striker rather than a hammer. Magazines, furniture, and internals are not interchangeable with AK parts.
• The striker is under spring tension in the bolt carrier and is not captive in the way an AK firing pin is. Control the components during bolt disassembly.
• The recoil spring assembly is under compression when the receiver cover is removed.
• Surplus ammunition may be corrosively primed.

Under spring tension

• Recoil spring assembly
• Striker spring
• Magazine spring

Easily lost parts

Locking block · Striker and its spring · Receiver cover latch

Tools

No tools required for the field strip.

Shop difficulty

Shop tier 2 Tier 2 — moderate among rifles and carbines, for the full job: strip to the parts that get coated and put it back together working. 84 numbered parts in the manual's figures, with an unusual striker-fired, flat-spring fire-control group retained by e-clips. CZ reserves complete disassembly for a gunsmith workshop, the fire-control group is hard to remove without knowing the trick, and the return mechanism puts two springs in together.

Parts: 84 numbered parts (Numbered part callouts in the manual's figures 2–23 (rifle and magazine; accessories, sling and cleaning kit excluded); e-clips counted as items), from Sa vz. 58 Military Rifle Instructions Manual (English; hosted by CZ-USA) — CZ-USA (translation of the Czechoslovak military manual; re-hosted on archive.org), p. Figs. 2–23 (pp. 3–18) archive.org [2].

Bench time: about 45 min to strip, 70 min to rebuild (estimate). Return mechanism, bolt and carrier, piston, handguards (pinned), fire-control group (e-clips, flat springs), rear sight, stock and grip.

Small parts: 12 pins, 12 springs, 2 detents or plungers (other: counted by name from the manual figure callouts used for partCount; flat "feathers" (47, 214) counted as springs; 2 e-clips (411, 461) not counted as pins)

What comes off for coating

• Receiver: return mechanism (cover, striker spring, return spring), bolt carrier, locking piece, striker, fire-control group (e-clips), bolt catch and spring, magazine catch, pin, spring, rear sight slide/plunger/spring
• Bolt: firing pin, extractor, spring, stay
• Barrel: upper handguard (pin, pawl, spring), lower handguard and pin, piston and spring, front sight (spanner)
• Stock / grip: stock screw, front plate, butt plate, grip screw and nut

Special tools

• vz.58 needle (issued tool) — Pins and catches
• front sight spanner — Front sight
• e-clip pliers — Trigger and sear pin e-clips

Known pain points

• CZ says complete disassembly is gunsmith-workshop work, with no owner procedure for the fire-control group, sights or handguard pins. (both)
  Source: Sa vz. 58 Military Rifle Instructions Manual (English; hosted by CZ-USA) — CZ-USA (translation of the Czechoslovak military manual; re-hosted on archive.org) archive.org [2] — “Complete disassembling of the rifle is only carried out when replacing and repairing its parts at an autho- rized gunsmith workshop.”
• Getting the fire-control group out without knowing the method gouges the receiver and leads to a lot of fruitless banging. (disassembly)
  Source: How to strip a VZ 58 Fire Control Group — The Firearm Blog thefirearmblog.com [3] — “Trying to remove the fire control group from this rifle without knowing how is really hard, and results in lots of unnecessary scrapes on your receiver, and a lot of fruitless banging and frustration.”
• The return mechanism goes in with the return spring and striker spring started into the carrier and striker together, then the cover is pushed down and locked. (reassembly)
  Source: Sa vz. 58 Military Rifle Instructions Manual (English; hosted by CZ-USA) — CZ-USA (translation of the Czechoslovak military manual; re-hosted on archive.org) archive.org [2] — “First of all, partially shift the return spring in the cavity of the bolt carrier and then the stiker spring in the opening of thestriker.”
• A bolt detail strip (firing pin, extractor, extractor spring and stay) is slow, and the firing pin must be aligned with the extractor. (both)
  Owners report: VZ58 Bolt Detail Strip — Canadian Gun Nutz canadiangunnutz.com [4] — “I recently bought a vz58 and I decided to do a detail strip of the bolt (it took a lot of work and time).”

Fit or check on rebuild

• Return mechanism locked (audible click) — The cover pin must lock.
  Source: Sa vz. 58 Military Rifle Instructions Manual (English; hosted by CZ-USA) — CZ-USA (translation of the Czechoslovak military manual; re-hosted on archive.org) archive.org [2] — “Lock the return mechanism by shifting the pin of the receiver cover to the left until an audible click is heard.”
• Function check (safety, trigger reset, feeding, extraction) — Standard after any detail strip. No single source.
• Re-zero sights or scope — Sights and optics come off for coating, and point of impact must be re-confirmed. This is a standard check, so no source.

This is Pew-Takedown's rating, not the manufacturer's. How tiers are rated. Forum reports are owners' experience, not specifications.

Procedures

Torque specifications

No sourced torque values from the manufacturer are recorded for this firearm. Where a fastener has a specified torque — action screws, scope bases, muzzle devices, barrel nuts — get it from the manufacturer or a gunsmith rather than estimating it.

What the manufacturer does say: The manufacturer's documents give no torque value. They say: "The functioning of the stock: It should be checked in order to assure that the stock is tightly secured to the receiver, is steady and does not wobble significantly." (Sa vz. 58 Military Rifle Instructions Manual (English; hosted by CZ-USA), PDF p. 27)

Function check

• Verify the rifle is unloaded with no magazine inserted before each step.
• Cycle the action by hand and confirm the bolt locks and returns fully to battery.
• With the selector on safe, press the trigger. The hammer or striker must not release.
• Move the selector to fire, cycle the action, and press the trigger. It should release.
• Hold the trigger back, cycle the action, and release slowly to feel the disconnector reset.
• Confirm the magazine seats and locks positively, and that any hold-open engages on an empty magazine.
• Confirm the bolt holds open on an empty magazine — a feature the AK lacks.

Maintenance

Lubrication points

• Bolt and locking block surfaces
• Carrier rails
• Gas piston (light film)
• Striker channel (keep dry)

Cleaning notes

Keep the striker channel clean and dry. Corrosive surplus ammunition requires same-day cleaning with a water-based solvent, then drying and oiling.

Suggested inspection interval: roughly every 1000 rounds. This is a general guideline, not a manufacturer specification.

Wear parts to inspect

Locking block · Striker and spring · Extractor · Recoil spring · Gas piston

Common issues

Also covers

The procedures above are reported to apply to: Sa vz. 58 P and V · CSA vz. 58 semi-automatic sporters. Verify against the manual for your specific model.

Similar manual of arms

• AKM / AK-47 Pattern Rifle
• SKS

Sourcing