Smith & Wesson J Frame Model 38 Airweight Cylinder Stop & Spring — Used OEM Part 3881
Smith & Wesson J Frame Model 38 Airweight Cylinder Stop & Spring — Used OEM Part
Genuine Smith & Wesson OEM cylinder stop and spring for the J Frame Model 38 Airweight revolver. The cylinder stop (also called the cylinder latch or bolt) is the spring-loaded component that engages the cylinder notches to lock the cylinder in alignment with the barrel at each chamber position. A worn or broken cylinder stop causes the cylinder to fail to lock up properly, resulting in misalignment between the chamber and barrel — a safety-critical condition that prevents the revolver from functioning reliably. This used OEM part is inspected and functional, manufactured to original S&W specifications and tolerances.
Condition: Used — inspected and functional. Some fitting by a qualified gunsmith may be necessary.
Specifications
- Part Number: 3881
- Manufacturer: Smith & Wesson
- Part Type: Cylinder Stop & Spring
- Frame: J Frame
- Compatible Model: Model 38 Airweight
- Caliber: .38 Special
- Condition: Used — genuine OEM part, inspected and functional
Compatibility
| Model | Frame | Caliber |
|---|---|---|
| 38 Airweight | J Frame | .38 Special |
Finding Your Model Number
Swing out the cylinder and look behind the yoke on the frame. Model numbers were added starting in 1957–58. If your revolver has no model number stamped, it may be a pre-model variant — verify compatibility before ordering.
Important Notes
- This listing is for the cylinder stop and spring only. All other parts are sold separately.
- Used condition — some fitting by a qualified gunsmith may be necessary.
- Action disassembly is required for installation. Gunsmith installation recommended.
- Always function test after installation to confirm proper cylinder lockup and timing before firing.