{"product_id":"sw-j-frame-firing-pin-assembly-spring-retaining-pin-new-style-357-mag-used-340181","title":"S\u0026W J Frame Firing Pin Assembly with Spring \u0026 Retaining Pin New Style .357 Mag Used, Part 340181","description":"\u003cp\u003eFactory OEM Smith \u0026amp; Wesson firing pin assembly for J Frame centerfire revolvers, new-style design. Includes firing pin, firing pin spring, and retaining pin. Used surplus parts in good working condition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 340181\u003c\/li\u003e\n\u003cli\u003eIncludes: Firing pin, firing pin spring, retaining pin\u003c\/li\u003e\n\u003cli\u003eStyle: New Style\u003c\/li\u003e\n\u003cli\u003eCaliber: .357 Magnum \/ .38 Special (centerfire)\u003c\/li\u003e\n\u003cli\u003eFrame Size: J Frame\u003c\/li\u003e\n\u003cli\u003eCondition: Used \/ Surplus\u003c\/li\u003e\n\u003cli\u003eBrand: Smith \u0026amp; Wesson\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe firing pin assembly transfers hammer energy to the cartridge primer to initiate ignition. The firing pin spring controls forward travel and returns the pin to the rest position after each shot. The retaining pin secures the assembly within the frame. A worn, broken, or missing firing pin or spring will cause misfires or light strikes. Replace with this complete factory assembly to restore reliable ignition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eCaliber\u003c\/th\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 340\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eNew style — verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 340PD\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eAirLite Sc — New style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 360\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eNew style — verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 360PD\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eNew style — verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 640\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eNew style — verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 649\u003c\/td\u003e\n\u003ctd\u003e.357 Mag \/ .38 Spl\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eNew style — verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This is a \u003cstrong\u003enew-style\u003c\/strong\u003e firing pin assembly. Verify your revolver uses the new-style design before ordering. Rimfire J Frame models (43, 63, 317) are not compatible — centerfire only.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProfessional installation by a qualified gunsmith is recommended. Verify proper headspace and function-test for reliable ignition before returning to service.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41272168972346,"sku":"340181","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC00637_c308cff6-8c50-4cdc-8aaf-489adaf62ee8.jpg?v=1772466811","url":"https:\/\/usagunsandgear.com\/products\/sw-j-frame-firing-pin-assembly-spring-retaining-pin-new-style-357-mag-used-340181","provider":"USA Guns And Gear","version":"1.0","type":"link"}