J300 Smith & Wesson Used J Frame Model 331 Cylinder Stop & Spring collectible Style: Grooved

Style: Grooved

The Model 637's light weight makes trigger control even more important for managing recoil and maintaining accuracy

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A must-have for collectors and fans of America's most iconic firearms brand

J300 Smith & Wesson Used J Frame Model 331 Cylinder Stop & Spring collectible Style: GroovedJ300 Smith & Wesson Used J Frame Model 331 Cylinder Stop & Spring Used Pistol Part 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 #