1917174A Smith & Wesson Revolver N Frame Model 1917 Strain Screw Square Butt D.A.45 Used trigger Model 642 (hammerless Centennial)

Model 642 (hammerless Centennial)

smooth pull in DA mode and a shorter

Built on the robust N Frame platform

Essential for maintaining proper cylinder timing and lockup

This factory OEM part ensures proper slide function and longevity

1917174A Smith & Wesson Revolver N Frame Model 1917 Strain Screw Square Butt D.A.45 Used trigger Model 642 (hammerless Centennial)1917174A Smith & Wesson Revolver N Frame Model 1917 Strain Screw Square Butt D. A. 45 Parkerized Steel Used Late issue from April 1918 to the end of military war time production are found with the Eagle's head and an "S" number. The letter numbers S1, S2, S3, S4, S6, S9, S24, S27, S34 have been observed on various examples of Model 1917's. These numbers indicate various assistant inspectors. How to determine the model number of your Smith & Wesson