{"product_id":"sw-j-frame-concealed-hammer-mim-new-style-357-mag-used-340107","title":"S\u0026W J Frame Concealed Hammer MIM New Style .357 Mag Used, Part 340107","description":"\u003cp\u003eFactory OEM Smith \u0026amp; Wesson concealed hammer (Centennial style) for J Frame centerfire revolvers. MIM (Metal Injection Molded) construction, new-style design. Used surplus part 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: 340107\u003c\/li\u003e\n\u003cli\u003eHammer Style: Concealed (Centennial)\u003c\/li\u003e\n\u003cli\u003eConstruction: MIM (Metal Injection Molded)\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 concealed hammer (also called an internal or shrouded hammer) is fully enclosed within the frame, eliminating external hammer snag points for smooth draw from a pocket or holster. It strikes the firing pin to initiate ignition. The new-style MIM construction delivers factory-spec geometry and consistent ignition. A worn or broken hammer will cause misfires or failure to fire.\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 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 — Centennial, 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\u003eCentennial — verify new style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 40\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eCentennial — verify new style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 42\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eCentennial — verify new style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 442\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eCentennial — verify new style\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\u003eCentennial — verify new style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 642\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003eCentennial — verify new style\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\u003econcealed hammer\u003c\/strong\u003e — only fits Centennial-style J Frame revolvers. Not compatible with exposed hammer models (36, 37, 60, 649) or rimfire J Frame models (43, 63, 317).\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 hammer-to-firing-pin alignment and function-test before returning to service.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41272184569914,"sku":"340107","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC00617_3a5eedae-c8dc-43f2-ba66-eece3c86efbe.jpg?v=1772470000","url":"https:\/\/usagunsandgear.com\/products\/sw-j-frame-concealed-hammer-mim-new-style-357-mag-used-340107","provider":"USA Guns And Gear","version":"1.0","type":"link"}