{"product_id":"smith-wesson-k-frame-model-19-4-cylinder-stop-spring-357-magnum-1981h","title":"Smith \u0026 Wesson K Frame Model 19-4 Cylinder Stop \u0026 Spring .357 Magnum 1981H","description":"\u003ch2\u003eSmith \u0026amp; Wesson K Frame Model 19-4 Cylinder Stop \u0026amp; Spring — Old Style\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1981H  |  \u003cstrong\u003eCondition:\u003c\/strong\u003e Pre-Owned \/ Used  |  \u003cstrong\u003eCaliber:\u003c\/strong\u003e .357 Magnum \/ .38 Special  |  \u003cstrong\u003eFrame:\u003c\/strong\u003e K Frame\u003c\/p\u003e\u003cp\u003eKeep your Model 19-4 Combat Magnum timed and functioning correctly with this genuine Smith \u0026amp; Wesson factory cylinder stop and spring set. The cylinder stop (also called the bolt) is the part that locks the cylinder in alignment with the barrel at the moment of firing — a critical component for accuracy and safe operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine S\u0026amp;W factory parts — same specs, materials, and tolerances as original\u003c\/li\u003e\n\u003cli\u003eCompatible with S\u0026amp;W K Frame Model 19-4 revolvers chambered in .357 Magnum \/ .38 Special\u003c\/li\u003e\n\u003cli\u003eOld-style design — verify compatibility with your specific serial range before ordering\u003c\/li\u003e\n\u003cli\u003eIncludes cylinder stop and cylinder stop spring\u003c\/li\u003e\n\u003cli\u003ePre-owned components in serviceable condition\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended — gunsmith fitting may be required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Identify Your S\u0026amp;W Model Number\u003c\/h3\u003e\u003cp\u003eSwing out the cylinder and check behind the yoke on the frame. Model numbers were introduced in 1957–58. If no model number is present, your revolver may pre-date that era — contact us with your serial number and we'll help you find the right part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQuestions?\u003c\/strong\u003e Email or call USA Guns And Gear — we specialize in new, used, and new-old-stock Smith \u0026amp; Wesson double-action revolver parts.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41435206549562,"sku":"1981H","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSCF0001_60672c7d-ce96-439e-b2d4-8e07408cb068.jpg?v=1779992612","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-k-frame-model-19-4-cylinder-stop-spring-357-magnum-1981h","provider":"USA Guns And Gear","version":"1.0","type":"link"}