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Work order — Uzi

Taking the firearm apart for a job such as refinishing, and putting it back together to specification. Generated from the Pew-Takedown entry last updated 2026-10-29. Confidence: medium.

Shop difficulty: Tier 2 of 3

69 pieces counting the bayonet, and the stamped receiver strips easily. The grip-frame fire-control group has stiff trigger-spring legs that must pass under hooks and the disconnector, which needs a notched tool, plus several small springs. It is a light Tier 2. 64 parts (Complete FN-licensed Uzi SMG including bayonet sub-list (64 line items)). Pew-Takedown's rating, not the manufacturer's.

Bench time: strip ~40 min, rebuild ~60 min (estimate). Actual: strip ______ rebuild ______

Special tools:

• notched small screwdriver — Trigger spring legs

Watch for:

• The trigger spring's legs are stiff and must be pushed under wire hooks and the disconnector. A notched screwdriver made for the job is needed. (both; Ronin's Grips (build blog))
• The trigger spring ends are flipped down around the mechanism only after the pivot pin is in, and the pin goes in from one side with its slot oriented. (reassembly; UziTalk.com)

1. Clear and make safe

1. Point the muzzle in a safe direction and keep your finger off the trigger.
2. Place the selector or safety on safe.
3. Press or operate the magazine release and remove the magazine.
4. Pull the charging handle fully to the rear and lock the bolt open if the design allows.
5. Inspect the chamber and magazine well with a light and physically confirm the chamber is empty.
   Warning: Look and feel. Both, every time.
6. The magazine housing is in the grip. Confirm both the grip housing and the chamber are empty.
7. Remove all live ammunition from the work area.

2. Disassemble

Field Strip

1. Complete the Clear and Make Safe procedure with the selector on safe.
2. Press the top cover latch at the rear of the receiver and lift the top cover off.
   Warning: The recoil springs are under compression beneath it.
3. Withdraw the bolt and recoil spring assembly rearward out of the receiver.
4. Unscrew the barrel retaining nut at the front of the receiver and withdraw the barrel forward.
5. Clean the bore, chamber, bolt, and receiver interior.

3. Refinish

The components the procedures above separate. Coating, masking and cure are outside this database; follow your coating system's instructions. A part the manufacturer marks "factory fit" should not be swapped or reworked.

No manufacturer statement of materials or finish is recorded. Identify each part's material before choosing prep and cure.

The manufacturer's full parts list (64 parts) is on the reference page.

4. Reassemble

Reassembly

1. Insert the barrel into the receiver and thread the barrel retaining nut on, tightening it fully.
   Warning: The barrel nut must be fully tight before firing.
2. Insert the bolt and recoil spring assembly into the receiver and seat them.
3. Fit the top cover and press it down until the latch engages.
   Warning: Confirm the top cover is latched.
4. Cycle the action several times and perform the function check.

5. Torque

No manufacturer torque values are recorded for this firearm.

Notes: The manufacturer's documents give no torque value. They say: "Tighten barrel retaining nut until clicking noise stops." (IWI UZI PRO Pistol Operator's Manual, PDF p. 35 (troubleshooting: barrel not properly seated)) "Depress the barrel catch and hand tighten the retaining nut until" (IWI UZI PRO Pistol Operator's Manual, p. reassembly section (sentence continues on next line))

Fit or check on rebuild

• Barrel nut tight — A loose nut lets the barrel move.
• 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.

6. Function check

• Verify the firearm is unloaded with no magazine inserted before each step.
• Cycle the action by hand and confirm the bolt returns fully into battery.
• With the safety on, press the trigger. The hammer or striker must not release.
• Move the safety 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 releases cleanly.
• Confirm the grip safety must be depressed for the trigger to function.
• Confirm the barrel retaining nut is fully tight and the top cover is latched.

If any check fails, the firearm is not safe to fire. Stop and see a licensed gunsmith.

Sources

1. Uzi Submachine Gun Operator’s Manual — Israel Military Industries primary
2. IWI UZI PRO Pistol Operator's Manual — IWI US, Inc. primary
   https://iwi.us/wp-content/uploads/2024/01/IWI-Uzi-Pro-Manual.pdf
3. UZI SMG Operation Manual, Cal. 9 mm Parabellum — Fabrique Nationale d'Armes de Guerre S.A., Herstal-Liège (Belgium) primary
   https://archive.org/download/gunmanual_Uzi-Fn/Uzi-Fn.pdf
4. Uzi Part 4/7 - Preparing the Uzi Grip Frame — Ronin's Grips (build blog) secondary
   https://blog.roninsgrips.com/uzi-part-4-7-preparing-uzi-grip-frame/
5. Assembling the lower (grip frame) — UziTalk.com anecdotal
   https://uzitalk.com/reference/pages/assemblelower.htm

Educational guide only. Some information comes from non-authoritative sources. Always consult your manufacturer's manual and a licensed gunsmith. Verify your firearm is unloaded before every procedure. Full disclaimer: https://github.com/Fundamental-build-LLC/Pew-Takedown

Legal notice: this material is third-party information compiled from sources of varying reliability and is provided for general informational and educational purposes only. It is not gunsmithing, technical, safety or legal advice, it is not verified or endorsed by any manufacturer, and it must not be taken as fact. Any work on a firearm beyond the routine field stripping described in its own owner's manual should be performed only by a licensed and insured gunsmith. You use this material entirely at your own risk. Fundamental Build LLC and the project's contributors make no warranty of any kind and accept no liability for death, injury, damage or loss arising from its use. Full terms: LEGAL.md.