Smith & Wesson J Frame Model 42 Centennial Airweight Flat Latch Thumb Piece & Screw, Old Style - Part# J42178 1076 Part Number: 870A17

Part Number: 870A17

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Smith & Wesson J Frame Model 42 Centennial Airweight Flat Latch Thumb Piece & Screw, Old Style - Part# J42178 1076 Part Number: 870A17Smith & Wesson J Frame Model 42 Centennial Airweight Flat Latch Thumb Piece & Screw Old Style Black This is a genuine used Smith & Wesson factory part the old style flat latch thumb piece and screw for the J Frame Model 42 Centennial Airweight revolver chambered in . 38 Special. The flat latch design is specific to early production Model 42 revolvers. If your cylinder release feels worn, loose, or is missing the screw, this is the correct replacement