S&W K Frame Model 66-2 .357 Magnum Thumb Piece & Nut Used 66177 k17 38 Special and features the

38 Special and features the classic pinned construction found on pre-1982 S&W revolvers

This old-style replacement part fits all K

Quality-inspected used parts offering reliable performance

Upgrade your Smith & Wesson revolver's trigger pull with this premium Wilson Combat Custom Tune Spring Kit

⚠ Professional Installation Recommended: This component requires disassembly and reassembly of your firearm's internal mechanism

S&W K Frame Model 66-2 .357 Magnum Thumb Piece & Nut Used 66177 k17 38 Special and features theSmith & Wesson Revolver K Frame Model 66 2 . 357 Magnum Thumb Piece & Nut Stainless Steel Old Style Used Part Part# 66177