Smith & Wesson K Frame Trigger .300" Wide Smooth Spur Old Style - 10185
$29.99
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Smith & Wesson K Frame Trigger .300" Wide Smooth Spur Old Style - 10185
$29.99
Smith & Wesson K Frame Trigger – .300" Wide Smooth Spur, Old Style
This factory original Smith & Wesson K Frame Trigger features a .300" wide smooth spur face with no serrations, providing a clean, snag-free profile ideal for double-action shooting and concealed carry revolvers. The smooth face allows the trigger finger to roll through the double-action stroke more naturally, reducing perceived pull weight and improving control.
Part Details
- Part Number: 10185
- Manufacturer: Smith & Wesson
- Frame: K Frame (Medium Frame)
- Trigger Width: .300"
- Face Style: Smooth Spur (no serrations)
- Style: Old Style
- Function: Fire Control / Trigger
- Condition: Used – Factory Original, Functional
Model Compatibility
| Model | Caliber | Type | Compatible |
|---|---|---|---|
| 10, 10-10, 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 |
| 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 |
⚠️ This is the old style K Frame trigger. Triggers are interchangeable across centerfire and rimfire K Frame models — not caliber-specific. Also available: .310" wide trigger (part 66107F) and serrated spur variants. Verify old-style compatibility with your revolver before ordering.
Smooth vs. Serrated Trigger Face
The smooth spur trigger face is preferred for double-action shooting as it allows the finger to roll through the stroke without catching. Serrated triggers provide more positive finger placement for single-action target shooting. Choose based on your intended use.
Installation Note
Professional gunsmith installation recommended. Trigger fitting requires verification of proper sear engagement, trigger return, and cylinder timing. Always function-test after installation.