Smith & Wesson K Frame Trigger with Hand .310" MIM Old Style - 66107F
$6.99
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Smith & Wesson K Frame Trigger with Hand .310" MIM Old Style - 66107F
$6.99
Smith & Wesson K Frame Trigger with Hand – .310" MIM, Old Style
This factory original Smith & Wesson K Frame Trigger with integrated Hand is a MIM (Metal Injection Molded) assembly combining the trigger and hand into a single unit. The .310" wide trigger face provides a comfortable, positive grip during both single and double-action operation, while the integrated hand ensures reliable cylinder rotation and timing with every trigger pull.
Part Details
- Part Number: 66107F
- Manufacturer: Smith & Wesson
- Frame: K Frame (Medium Frame)
- Trigger Width: .310"
- Construction: MIM (Metal Injection Molded)
- Finish: Stainless Steel
- Includes: Integrated Hand Assembly
- Style: Old Style
- Condition: Used – Factory Original
Model Compatibility
| Model | Caliber | Type | Compatible |
|---|---|---|---|
| 10, 11, 12 | .38 Special | Centerfire | ✓ Yes |
| 13 | .357 Magnum | Centerfire | ✓ Yes |
| 14, 15 | .38 Special | Centerfire | ✓ Yes |
| 16 | .32 Long | Centerfire | ✓ Yes |
| 17, K22 | .22 LR | Rimfire | ✓ Yes |
| 18 | .22 LR | Rimfire | ✓ Yes |
| 19 | .357 Magnum | Centerfire | ✓ Yes |
| 48 | .22 Magnum | Rimfire | ✓ Yes |
| 53 | .22 Jet | Centerfire | ✓ Yes |
| 64 | .38 Special | Centerfire | ✓ Yes |
| 65 | .357 Magnum | Centerfire | ✓ Yes |
| 66 | .357 Magnum | Centerfire | ✓ Yes |
| 67 | .38 Special | Centerfire | ✓ Yes |
| 617 | .22 LR | Rimfire | ✓ Yes |
| 648 | .22 Magnum | Rimfire | ✓ Yes |
⚠️ Triggers and hands are interchangeable across all K Frame models regardless of caliber (centerfire or rimfire). This is the old style configuration — verify compatibility with your revolver before ordering. Also see part 10185 for the .300" smooth spur trigger variant.
MIM Construction Note
MIM (Metal Injection Molded) components are factory-standard on modern S&W revolvers and meet OEM specifications for fit, function, and durability. This is a genuine factory part, not an aftermarket component.
Installation Note
Professional gunsmith installation recommended. Trigger and hand fitting requires verification of proper sear engagement, cylinder timing, and trigger return. Always function-test after installation.