This high-quality extractor pin, part number 077240000, is designed for a variety of Smith & Wesson revolver models, including the J, K, L, and N frames. Made of durable stainless steel, it is a reliable and essential addition to your firearm. Compatible models include 60, 63, 64, 65, 66, 67, 610, 617, and many more. Please note that it is not intended for use with the 640 Magnum factory model.