Smith & Wesson J Frame Model 42 Centennial Airweight Bolt for Flat Latch Thumb Piece - Part #J4245

Smith & Wesson J Frame Model 42 Centennial Airweight – Bolt for Flat Latch Thumb Piece Keep your Model 42 cycling smoothly with this original Smith & Wesson bolt (cylinder stop) designed specifically for the flat latch thumb piece configuration. This is the part that locks the cylinder in place during firing — a critical component for reliable revolver function. Whether you're restoring a classic Centennial Airweight or replacing a worn part, this is the correct OEM-spec piece for the job. Part Number: J4245 Fits: Smith & Wesson J Frame Model 42 Centennial Airweight Caliber: .38 Special Style: Flat Latch Thumb Piece (Old Style) Condition: Used, original S&W part Frame Size: J Frame Compatible Models This bolt is designed for the Model 42 with the flat latch thumb piece. It may also be compatible with other early J Frame .38 Special models sharing the same bolt configuration — verify your thumb piece style before ordering. Note: Used part. Inspect upon receipt and test fit before installation. Recommend fitting by a qualified gunsmith.