L195 Smith & Wesson Used L Frame Model 581 .357 Magnum Cylinder Stop elevation nut Model 337PD (

Model 337PD (

Exterior dimensions: 15" × 9

17 K-Frame

Swing out the cylinder of your revolver

L195 Smith & Wesson Used L Frame Model 581 .357 Magnum Cylinder Stop elevation nut Model 337PD (L195 Smith & Wesson Used L Frame Model 581 . 357 Magnum Cylinder Stop Please call or email with any questions! 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 # . If this is