S&W New L Frame Model 581, 586 Hammer Block 071150000 Sheriff A: When properly selected

A: When properly selected

Finish: Corrosion-resistant

Style: White outline for fast sight acquisition

J542 Smith & Wesson Used J Frame Model 642

S&W New L Frame Model 581, 586 Hammer Block 071150000 Sheriff A: When properly selected071150000 Smith & Wesson New L Frame Model 581, 586 Hammer Block Revolver Gun 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 #