Smith & Wesson Model 19-4 Round Butt Strain Screw - 19172
$6.99
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Smith & Wesson Model 19-4 Round Butt Strain Screw - 19172
$6.99
Smith & Wesson Model 19-4 Round Butt Strain Screw - 19172
Used strain screw listed for a Smith & Wesson Model 19-4 K-frame revolver with a round-butt grip frame. This screw bears on the mainspring; correct fit and adjustment matter for reliable ignition. Inspect the actual part and compare it with the screw being replaced before ordering.
Part details
- Part: Old-style round-butt strain screw
- Listing part number / SKU: 19172
- Listed application: Smith & Wesson Model 19-4, K frame, .357 Magnum, round butt
- Condition: Used; check photos for actual wear and finish
- Included: Strain screw only
Model compatibility
| Model | Frame / caliber | Fitment check |
|---|---|---|
| Model 19-4 | K frame / .357 Magnum | Round-butt grip frame and matching old-style strain screw; compare length, threads, and tip with the original. |
Other models and dash revisions: Fitment has not been verified for this individual screw. Do not assume interchangeability based on frame size or caliber alone. Square-butt and later-design applications require separate verification.
Before installation
Confirm your revolver's model and dash marking, butt shape, and the original screw's dimensions. A gunsmith should check fit and mainspring tension; an incorrectly fitted or shortened screw can affect ignition.