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Smith & Wesson Model 66 K-Frame Mainspring Used - 66141
$6.99
Smith & Wesson Model 66 K-Frame Mainspring, Used
Replacement mainspring for a Smith & Wesson Model 66 .357 Magnum K-frame revolver. This is a used part; expect signs of prior installation or handling. Listing number: 66141.
Model compatibility
| Model | Frame | Caliber | Fitment note |
|---|---|---|---|
| Smith & Wesson Model 66 | K-frame | .357 Magnum | Dash-revision fitment has not been verified. Compare your original spring and confirm fit before ordering. |
Professional installation and fitment inspection are recommended. This listing is for the mainspring only.