{"product_id":"smith-wesson-k-frame-model-66-internal-parts-strain-screw-lot-used-357-magnum-ks139a","title":"Smith \u0026 Wesson K Frame Model 66 Internal Parts \u0026 Strain Screw Lot Used .357 Magnum - KS139A","description":"\u003ch2\u003eSmith \u0026amp; Wesson K Frame Model 66 Internal Parts \u0026amp; Strain Screw Lot — Used\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePart Lot # KS139A | Used | K Frame | Model 66 | .357 Magnum | Parts Lot\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUsed internal parts lot for the Smith \u0026amp; Wesson Model 66 K Frame revolver (.357 Magnum). A convenient set of common action and lockwork components — ideal for a full action job, gunsmith parts stock, or sourcing hard-to-find used K Frame internals. All parts are used and sourced from a Model 66 revolver.\u003c\/p\u003e\u003ch3\u003eThis Lot Includes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBolt (Cylinder Stop Bolt)\u003c\/li\u003e\n\u003cli\u003eCylinder Stop\u003c\/li\u003e\n\u003cli\u003eHammer Block\u003c\/li\u003e\n\u003cli\u003eMain Spring (Hammer Spring)\u003c\/li\u003e\n\u003cli\u003eRebound Slide\u003c\/li\u003e\n\u003cli\u003eRebound Slide Spring\u003c\/li\u003e\n\u003cli\u003eAdditional Spring (type unidentified)\u003c\/li\u003e\n\u003cli\u003eStrain Screw\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Smith \u0026amp; Wesson Model 66 K Frame (.357 Magnum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Most of these internal components (bolt, cylinder stop, hammer block, mainspring, rebound slide and spring) are common across K Frame DA\/SA centerfire models and may interchange with Models 10, 13, 14, 15, 19, 64, 65, 67 and related variants — verify with your gunsmith before use in a different model.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used — inspect all parts individually before installation. Professional gunsmith installation and function testing required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e K Frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .357 Magnum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM:\u003c\/strong\u003e Factory Smith \u0026amp; Wesson parts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":17259158569018,"sku":"KS139A","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/products\/DSC06242.JPG?v=1571386800","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-k-frame-model-66-internal-parts-strain-screw-lot-used-357-magnum-ks139a","provider":"USA Guns And Gear","version":"1.0","type":"link"}