58122B Smith & Wesson L Frame Model 581 Nickel 4" Non-Pinned Barrel Used .357 Mag jpre37u Part Number: 17179AB

Part Number: 17179AB

45 ACP Model 4505 and 4567

or hunting applications where fast target acquisition is critical

Two extractor styles exist and are not interchangeable:

312" Smooth Trigger

58122B Smith & Wesson L Frame Model 581 Nickel 4" Non-Pinned Barrel Used .357 Mag jpre37u Part Number: 17179ABPart# 58122B Smith & Wesson L Frame Model 581 Nickel 4" Non Pinned Barrel . 357 Magnum Used 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