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Charter Arms Undercover
- moderate
- Shop tier 2
- low confidence
- Revolver
- revolver
- double action
- concealed carry
- one piece frame
- no sideplate
- budget
field strip ~3 min · reassembly ~5 min · detail strip ~40 min
Specifications
- Manufacturer
- Charter Arms
- Origin
- United States
- Category
- Revolver
- Action
- Double-action revolver
- Calibers
- .38 Special
- Capacity
- 5 rounds
- Production
- 1964–present (in-production)
- Also known as
- Charter Undercover, Charter Arms Off Duty
Model-specific safety
- A revolver is not cleared by opening the cylinder. Look through every chamber and count them.
- Charter Arms revolvers use a one-piece frame with no sideplate, unlike Smith & Wesson and Colt. That means there is no sideplate to remove — and also no conventional way in. Owner disassembly beyond cylinder removal is not supported.
- Cylinder removal on a Charter differs from the S&W yoke-screw method. Confirm the procedure against the manual for your revolver rather than assuming.
- Never flick the cylinder closed.
- The cylinder release is pushed forward, following the S&W convention.
Under spring tension
- Mainspring
- Cylinder stop spring
- Hand spring
Easily lost parts
Cylinder and crane assembly · Grip screw · Ejector rod components
Tools
| Tool | Required | Used for | Substitute |
|---|---|---|---|
| Hollow-ground gunsmith screwdriver | Optional | Grip and any screw work. |
Shop difficulty
Shop tier 2 Tier 2 — moderate among revolvers, for the full job: strip to the parts that get coated and put it back together working. Small 5-shot DA with a one-piece frame and no sideplate, so the lockwork comes out through the bottom with the trigger, hand and transfer-bar safety as a group; fewer loose parts than a S&W, but the procedure differs from every other DA and Charter treats the lockwork as not owner-serviceable. Moderate, low confidence.
No sourced part count yet.
Bench time: about 30 min to strip, 50 min to rebuild (estimate). Estimated: grips, cylinder/crane, trigger group and hammer out through the bottom of the one-piece frame, ejector parts and sights. Rebuild dominated by refitting hand, transfer bar and springs through the bottom and a timing check.
What comes off for coating
- Cylinder and crane: cylinder and crane per Charter procedure (not an S&W yoke screw), ejector rod and spring if the cylinder is coated — fitted screwdrivers
- Lockwork (through the bottom of the frame): grips, mainspring, trigger group with hand and transfer-bar safety, hammer, cylinder stop and spring, cylinder release / thumbpiece — pin punches
- Frame: front sight if pinned — pin punch
Special tools
- Pin punches sized to the trigger/hammer pins — Trigger and hammer pivot pins in the one-piece frame
Fit or check on rebuild
- Timing / carry-up: every chamber locks before the hammer falls, single and double action; cylinder gap and end shake — Standard revolver check after lockwork has been out; worn hand or cylinder stop gives the "does not lock up" fault under Common issues.
- Transfer bar rises with the trigger and the hammer cannot reach the firing pin with the trigger forward — Charter uses a transfer bar; it comes out with the trigger group and must be refitted correctly (well-known check).
This is Pew-Takedown's rating, not the manufacturer's. How tiers are rated. Forum reports are owners' experience, not specifications.
Procedures
Clear and Make Safe
Clear & Make Safe- Point the muzzle in a safe direction and keep your finger off the trigger.
- Push the cylinder release forward and swing the cylinder out.
- Press the ejector rod firmly to eject all cartridges or cases.Removed at this step:
Cartridges or cases - Look through every chamber, one at a time, and confirm each is empty.WarningEvery chamber, counted.
- Confirm the bore is clear and remove all live ammunition from the work area.
Field Strip — Cylinder Removal
Field StripOwner-level work on a Charter stops at the cylinder. There is no sideplate.
- Complete the Clear and Make Safe procedure and leave the cylinder open.
- Following the procedure in the manual for your revolver, release and withdraw the cylinder and crane assembly from the frame.WarningCharter cylinder retention differs from the S&W yoke screw. Do not apply an S&W procedure to it.Removed at this step:
Cylinder and crane assembly - Clean the chambers, bore, cylinder face, forcing cone, and crane bearing surfaces.
- Stop here. The one-piece frame has no sideplate and the lockwork is not owner-serviceable.WarningIf the revolver is not functioning correctly, send it to the manufacturer or a gunsmith.
Reassembly
Reassembly- Reinstall the cylinder and crane assembly into the frame following the manual for your revolver.
- Close the cylinder gently by hand and confirm it latches.WarningNever flick it closed.
- Perform the function check.
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.
Materials and factory finish
As stated by Charter Arms. Prep, masking and cure depend on these; a polymer or aluminium part, a nitrided or anodised finish, and a blued steel part are each a different job. Variants with other finishes may exist — check the maker's page for the exact SKU on the bench.
| Component | Material | Factory finish | Where it comes from |
|---|---|---|---|
| Frame Undercover, .38 Special, 2in, SKU 73820 | Stainless Steel | Traditional Polish | 73820 - Undercover® | CHARTER ARMS Manufacturing — Charter Arms charterarmsmanufacturing.com [2] “Frame Material: Stainless Steel … Finish: Traditional Polish” |
| Grips Undercover, .38 Special, 2in, SKU 73820 | Rubber | — | 73820 - Undercover® | CHARTER ARMS Manufacturing — Charter Arms charterarmsmanufacturing.com [2] “Grip: Combat Full Rubber” |
Function check
- Verify every chamber is empty before each check.
- Cock the hammer slowly and confirm the cylinder locks up at each chamber before full cock.
- With the hammer at full cock, confirm the cylinder is locked with minimal play.
- Press the trigger in single action and confirm a clean hammer fall.
- Cycle the action in double action through every chamber.
- Confirm the cylinder latches closed securely.
Maintenance
Lubrication points
- Crane where the cylinder rides
- Ejector rod
- Hammer and trigger pivots
- Cylinder stop
Cleaning notes
Clean the chambers, cylinder face, and forcing cone. Keep lubrication sparing — revolver lockwork does not want to be wet.
Suggested inspection interval: roughly every 1500 rounds. This is a general guideline, not a manufacturer specification.
Wear parts to inspect
Hand · Cylinder stop · Ejector rod tightness · Forcing cone
Common issues
| Symptom | Likely cause | What to do |
|---|---|---|
| Cylinder does not lock up before the hammer falls | Worn hand or cylinder stop | Stop shooting it and have the timing checked. see a gunsmith |
| S&W disassembly instructions do not work | Charter uses a one-piece frame with no sideplate and different cylinder retention | Use the manual for your revolver. |
Also covers
The procedures above are reported to apply to: Charter Arms Off Duty · Charter Arms Bulldog (.44 Special) · Charter Arms Pathfinder (rimfire). Verify against the manual for your specific model.
Similar manual of arms
Sourcing
- Confidence
- low — Compiled from limited or non-authoritative sources. Treat this entry as a starting point and verify before acting on it.
- Verification
- Unverified — treat with caution
- Last updated
- 2026-10-29
References
Every source this page draws on, with its web address so you can read it yourself. Numbers in brackets elsewhere on the page point here.
- [1] Charter Arms Revolver Owner’s Manual — Charter Arms manufacturer manual primary source
- [2] 73820 - Undercover® | CHARTER ARMS Manufacturing — Charter Arms website primary source
https://www.charterarmsmanufacturing.com/product-page/73820-undercover (checked 2026-10-03)
Notes: Rated low confidence for the disassembly section. The clearing procedure and the function check are reliable, and the important structural point — a one-piece frame with no sideplate, so owner work stops at the cylinder — is well established. The exact cylinder release procedure varies across Charter production and has not been verified against a factory manual. Use the manual for your revolver.