Smith & Wesson K Frame Model 66 Strain Screw Round Butt - Part# 66172E

Smith & Wesson K Frame Model 66 Strain Screw Round Butt

OEM Smith & Wesson replacement strain screw (round butt, old style) for the K Frame Model 66 revolver. Stainless steel used part in good working condition — a reliable, cost-effective option for gunsmiths and collectors restoring or repairing a Model 66.

Part Details

• Part Number: 66172E
• Condition: Used, Old Style
• Fits: Smith & Wesson K Frame Model 66
• Butt Style: Round Butt
• Material: Stainless Steel
• Caliber: .357 Magnum / .38 Special
• Frame Size: K Frame

Compatible Models

This strain screw is specific to the Model 66 round butt configuration. The strain screw generally interchanges across K Frame centerfire models — verify fitment before installation.

Condition Notes

This is a used, old-style part. Inspect upon receipt and test function before installation. Sold as-is for gunsmith use.