A metal part labeled as a 'K Frame Model 10-10 Hand' cylinder grip for a Smith & Wesson revolver, with the serial number 10129.

Smith & Wesson K Frame Hand Old Style - 10129

$12.99
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A metal part labeled as a 'K Frame Model 10-10 Hand' cylinder grip for a Smith & Wesson revolver, with the serial number 10129.
  • A metal part labeled as a 'K Frame Model 10-10 Hand' cylinder grip for a Smith & Wesson revolver, with the serial number 10129.
  • Smith & Wesson revolver part on a stand with descriptive card
  • Smith & Wesson K Frame Hand Old Style - 10129
  • Smith & Wesson K Frame Hand Old Style - 10129
  • Smith & Wesson K Frame Hand Old Style - 10129
  • A metal part labeled as a 'K Frame Model 10-10 Hand' cylinder grip for a Smith & Wesson revolver, with the serial number 10129.
  • Smith & Wesson revolver part on a stand with descriptive card
  • Smith & Wesson K Frame Hand Old Style - 10129
  • Smith & Wesson K Frame Hand Old Style - 10129
  • Smith & Wesson K Frame Hand Old Style - 10129
Smith & Wesson K Frame Hand Old Style - 10129

Smith & Wesson K Frame Hand Old Style - 10129

$12.99

Smith & Wesson K Frame Hand – Old Style

This factory original Smith & Wesson K Frame Hand is the critical timing component that engages the ratchet on the rear of the cylinder, rotating it into alignment with the barrel as the hammer is cocked in both single-action and double-action operation. A worn or damaged hand causes cylinder timing failures, skipped chambers, or dangerous misalignment — making this one of the most important parts to keep in proper condition.

Part Details

  • Part Number: 10129
  • Manufacturer: Smith & Wesson
  • Frame: K Frame (Medium Frame)
  • Style: Old Style
  • Function: Cylinder Rotation / Timing Pawl
  • 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 hand. The hand is interchangeable across centerfire and rimfire K Frame models — it is not caliber-specific. Verify your revolver uses the old-style configuration before ordering.

Installation Note

The hand is a critical timing component. Professional gunsmith installation is strongly recommended. Proper fitting ensures correct cylinder rotation and lockup without binding or excessive play. Always function-test for safe cylinder timing after installation.

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