{"product_id":"smith-wesson-k-frame-model-66-cylinder-stop-with-spring-stainless-steel-357-magnum-6681d","title":"Smith \u0026 Wesson K Frame Model 66 Cylinder Stop with Spring - Stainless Steel .357 Magnum 6681D","description":"\u003cp\u003e\u003cstrong\u003eSmith \u0026amp; Wesson Model 66 Cylinder Stop with Spring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGenuine Smith \u0026amp; Wesson factory cylinder stop (bolt) with spring for Model 66 Combat Magnum revolvers. The cylinder stop is a critical timing component that locks the cylinder in proper alignment with the barrel for each shot, ensuring safe and accurate operation. This stainless steel assembly includes both the cylinder stop and its spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFactory S\u0026amp;W cylinder stop with spring in used condition\u003c\/li\u003e\n\u003cli\u003eStainless steel construction\u003c\/li\u003e\n\u003cli\u003eLocks cylinder in proper alignment for safe firing\u003c\/li\u003e\n\u003cli\u003eCritical timing component for reliable operation\u003c\/li\u003e\n\u003cli\u003eOld style configuration\u003c\/li\u003e\n\u003cli\u003eComplete assembly ready to install\u003c\/li\u003e\n\u003cli\u003eIdeal for restoration or replacement projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for Smith \u0026amp; Wesson K Frame Model 66 Combat Magnum revolvers chambered in .357 Magnum. Cylinder stops and other internal timing components typically interchange across K Frame models of the same era, though professional fitting may be required to ensure proper timing and lockup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProfessional gunsmith installation and fitting required. Disassembly and reassembly of the revolver's action is required. Proper installation and timing are critical for safe operation—the cylinder stop must engage the cylinder notches at precisely the right moment to ensure proper alignment. Some fitting may be necessary to achieve correct timing and lockup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 6681D\u003c\/li\u003e\n\u003cli\u003eModel: 66 Combat Magnum\u003c\/li\u003e\n\u003cli\u003eFrame Size: K Frame (Medium Frame)\u003c\/li\u003e\n\u003cli\u003eCaliber: .357 Magnum\u003c\/li\u003e\n\u003cli\u003ePart Type: Cylinder Stop (Bolt) with Spring\u003c\/li\u003e\n\u003cli\u003eMaterial: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eStyle: Old Style\u003c\/li\u003e\n\u003cli\u003eCondition: Used\u003c\/li\u003e\n\u003cli\u003eManufacturer: Smith \u0026amp; Wesson\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAbout the Cylinder Stop:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe cylinder stop, also called the bolt, is one of the most important timing components in a revolver. It pops up through the frame to engage notches in the cylinder, locking it in perfect alignment with the barrel at the moment of firing. Proper cylinder stop function is essential for accuracy, safety, and preventing cylinder endshake.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout the Model 66:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Smith \u0026amp; Wesson Model 66 Combat Magnum, introduced in 1970, is the stainless steel version of the legendary Model 19. Built on the K Frame platform, it was designed to handle the powerful .357 Magnum cartridge while offering the corrosion resistance of stainless steel construction. The Model 66 became a favorite among law enforcement and civilian shooters for its combination of power, accuracy, and durability.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41240215158842,"sku":"6681D","price":16.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/products\/DSC02487_7da91875-818f-43d8-b2e6-d83799ab9276.jpg?v=1770842888","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-k-frame-model-66-cylinder-stop-with-spring-stainless-steel-357-magnum-6681d","provider":"USA Guns And Gear","version":"1.0","type":"link"}