Smith & Wesson L Frame Model 586 Hammer Block Used OEM Part 586120 .357 Magnum
This listing is for the Smith & Wesson L Frame Model 586 Hammer Block (Used OEM Part 586120) only.
Used factory original Smith & Wesson hammer block for the L Frame Model 586 revolver chambered in .357 Magnum. The hammer block is a critical internal safety component that prevents the hammer from contacting the firing pin unless the trigger is fully depressed, providing drop-safe protection. A damaged or missing hammer block is a serious safety deficiency. Removed from a functioning revolver and inspected prior to sale.
Part Details
- Part Number: 586120
- Condition: Used — inspected and functional
- Manufacturer: Smith & Wesson
- Frame: L Frame
- Caliber: .357 Magnum
Model Compatibility
| Make | Frame | Model | Caliber | Compatible |
|---|---|---|---|---|
| Smith & Wesson | L Frame | Model 586 (.357 Magnum) — all dash revisions (586 through 586-8) | .357 Magnum | ✓ Yes |
| Smith & Wesson | L Frame | Model 581 (.357 Magnum fixed sight) | .357 Magnum | Verify before ordering |
| Smith & Wesson | L Frame | Other L Frame models (386, 619, 620) | Various | Verify before ordering |
| Smith & Wesson | K / N / X Frame | All | Various | ✗ No — different frame size |
Verify your model number before ordering. Contact us with fitment questions.
Installation Note
Gunsmith Recommended: Hammer block replacement requires side plate removal and action disassembly. Installation and function testing by a qualified gunsmith is strongly recommended. This is a safety-critical component.
We only ship to addresses within the United States.