{"product_id":"smith-wesson-k-frame-main-spring-old-style-used-64141a","title":"Smith \u0026 Wesson K Frame Main Spring Old Style Used Part 64141A","description":"\u003cp\u003e\u003cstrong\u003eSmith \u0026amp; Wesson K Frame Main Spring — Old Style | Used | Part #64141A\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFactory OEM main spring (hammer spring) for Smith \u0026amp; Wesson K Frame revolvers, old style design. This is the coil spring that drives the hammer forward to ignite the primer — a critical component for reliable ignition and consistent trigger pull. Genuine S\u0026amp;W factory part in used condition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eThis listing is for the main spring only.\u003c\/em\u003e Condition: Used, factory original.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 64141A\u003c\/li\u003e\n\u003cli\u003eFrame: K Frame\u003c\/li\u003e\n\u003cli\u003eDesign: Old Style\u003c\/li\u003e\n\u003cli\u003eType: Coil Main Spring (Hammer Spring)\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003cli\u003eCondition: Used \/ Factory Original OEM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eModel Compatibility Chart\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\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 10\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eAll variants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 11\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eMilitary \u0026amp; Police\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 12\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eAirweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 13\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eAll variants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 14\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eK-38 Masterpiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 15\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eCombat Masterpiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 16\u003c\/td\u003e\n\u003ctd\u003e.32 Long \/ .32 H\u0026amp;R\u003c\/td\u003e\n\u003ctd\u003eK-32 Masterpiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 17\u003c\/td\u003e\n\u003ctd\u003e.22 LR\u003c\/td\u003e\n\u003ctd\u003eK-22 Masterpiece (rimfire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 18\u003c\/td\u003e\n\u003ctd\u003e.22 LR\u003c\/td\u003e\n\u003ctd\u003eCombat Masterpiece (rimfire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 19\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eCombat Magnum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 48\u003c\/td\u003e\n\u003ctd\u003e.22 Magnum\u003c\/td\u003e\n\u003ctd\u003eK-22 Masterpiece MRF (rimfire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 53\u003c\/td\u003e\n\u003ctd\u003e.22 Jet\u003c\/td\u003e\n\u003ctd\u003eAll variants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 64\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eStainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 65\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eStainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 66\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eCombat Magnum Stainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 67\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eStainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 617\u003c\/td\u003e\n\u003ctd\u003e.22 LR\u003c\/td\u003e\n\u003ctd\u003eStainless (rimfire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 648\u003c\/td\u003e\n\u003ctd\u003e.22 Magnum\u003c\/td\u003e\n\u003ctd\u003eStainless (rimfire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eMain spring is interchangeable across all K Frame models regardless of caliber (centerfire and rimfire).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstallation requires removal of grip panels and sideplate. The main spring tension is regulated by the strain screw. Recommend installation by a qualified gunsmith to ensure proper function and safe trigger pull weight.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":39261226041402,"sku":"64141A","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/products\/DSC09291.jpg?v=1770907175","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-k-frame-main-spring-old-style-used-64141a","provider":"USA Guns And Gear","version":"1.0","type":"link"}