Smith & Wesson J Frame Model 640 Thumb Piece & Nut Stainless Steel .38 Special Old Style Used 640181 Model 457 Each spring is manufactured to

Each spring is manufactured to exacting tolerances using premium materials for reliable

potentially damaging your barrel threads or coming loose during use

265" width - standard service size

22 LR (Rimfire Only)

and the Model 19 Combat Magnum is one of the most respected duty revolvers ever produced

Smith & Wesson J Frame Model 640 Thumb Piece & Nut Stainless Steel .38 Special Old Style Used 640181 Model 457 Each spring is manufactured toSmith & Wesson J Frame Model 640 Thumb Piece & Nut Genuine Smith & Wesson factory thumb piece and nut assembly for J Frame Model 640 revolvers chambered in . 38 Special. This stainless steel component is an authentic old style used part in good working condition. Key Features: Stainless steel construction for durability and corrosion resistance Old style factory configuration Fits Smith & Wesson J Frame Model 640 . 38 Special revolvers Genuine S&W