I20 Smith & Wesson Used I Frame Blue 4" Pinned .38 CTG Regulation Police Barrel j49n A: The 15 LB spring

A: The 15 LB spring maintains reliable ignition with most ammunition

Important: This is the new-style fluted cylinder

Part Number: GR13

Fitting by a qualified gunsmith may be required to ensure proper function and safety

The straightforward message and durable construction make it perfect for marking boundaries and deterring unwanted visitors

I20 Smith & Wesson Used I Frame Blue 4" Pinned .38 CTG Regulation Police Barrel j49n A: The 15 LB springI20 Smith & Wesson Used I Frame Blue 4" Pinned . 38 CTG Regulation Police Barrel No Locking Bolt Assembly & No front Sight How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older than 1957 58. In this case we can possibly still find the part you need with the serial #