Smith & Wesson K Frame Model 19 Thumb Piece & Nut .357 Magnum Used later production Old style design featuring

Old style design featuring

Factory Smith & Wesson complete slide assembly for the M&P Shield 9mm M2

Please verify your revolver has a round butt frame before ordering

Stainless steel construction — a direct replacement for the original trigger on this classic stainless J Frame revolver

Factory new Smith & Wesson part

Smith & Wesson K Frame Model 19 Thumb Piece & Nut .357 Magnum Used later production Old style design featuringSmith & Wesson K Frame Model 19 Thumb Piece & Nut Used Part# 19179G Compatible Models: Model 19 (. 357 Magnum, K Frame) This listing is for the thumb piece and nut assembly only. What It Does Controls cylinder release operation. The thumb piece and retaining nut work together to ensure secure, reliable cylinder swing out function. Compatibility Smith & Wesson Model 19 (. 357 Magnum, K Frame) Condition Used, old style. Authentic S&W factory component.