Smith & Wesson K Frame Model 12 Thumb Piece & Nut - .38 Special - Part #12177 143 Part Type: Lever

Part Type: Lever

Note: Not compatible with earlier Model 27 generations (27-1 through 27-8) which use the old style bolt

featuring the new yoke retention design that began in 1988

The trigger bar transfers trigger pull to the sear

Smith & Wesson K Frame Model 12 Thumb Piece & Nut - .38 Special - Part #12177 143 Part Type: LeverSmith & Wesson K Frame Model 12 Thumb Piece & Nut Keep your Model 12 Airweight running smoothly with this original Smith & Wesson thumb piece and nut. This old style used part is a direct replacement for worn or damaged cylinder release components on K Frame . 38 Special revolvers. Compatibility: Smith & Wesson K Frame Model 12 Airweight Caliber: . 38 Special Part Number: 12177 Includes: Thumb piece and nut Style: Old style Condition: Used, original