Smith & Wesson J Frame Model 36 Used Thumb Piece & Nut .38 Special - Part # 36179C 586 This mainspring fits all Smith

This mainspring fits all Smith & Wesson J Frame revolvers

Requires internal parts to complete assembly

The Model 18 is part of Smith & Wesson's K Frame

Frame Type: J Frame

Professional installation by a qualified gunsmith is strongly recommended for all internal action components

Smith & Wesson J Frame Model 36 Used Thumb Piece & Nut .38 Special - Part # 36179C 586 This mainspring fits all SmithSmith & Wesson J Frame Model 36 Used Thumb Piece & Nut . 38 Special Part # 36179C OEM factory used thumb piece and nut assembly for the Smith & Wesson J Frame Model 36 Chief's Special revolver chambered in . 38 Special. Pull from gun condition serviceable for gunsmiths and hobbyists sourcing hard to find S&W components. Part #: 36179C Condition: Used pull from gun, serviceable Frame: J Frame Caliber: . 38 Special Compatible Models: Model 36 (Chief's