{"product_id":"sw-k-frame-model-15-4-strain-screw-square-butt-used-15173","title":"Smith \u0026 Wesson K Frame Model 15-4 Strain Screw Square Butt Used Part 15173","description":"\u003ch2\u003eSmith \u0026amp; Wesson K Frame Model 15-4 Strain Screw – Square Butt\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 15173\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Used – Factory Original OEM Part\u003cbr\u003e\u003cstrong\u003eCaliber:\u003c\/strong\u003e .38 Special\u003cbr\u003e\u003cstrong\u003eFrame Size:\u003c\/strong\u003e K Frame\u003c\/p\u003e\u003ch3\u003ePart Details\u003c\/h3\u003e\u003cp\u003eThis is a genuine Smith \u0026amp; Wesson OEM strain screw for square butt K Frame revolvers. The strain screw is located in the grip frame and controls mainspring tension, directly affecting trigger pull weight. This is an old-style part in used condition.\u003c\/p\u003e\u003ch3\u003eCompatible Models\u003c\/h3\u003e\u003cp\u003eFits Smith \u0026amp; Wesson square butt K Frame revolvers, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel 15-4 (primary fit)\u003c\/li\u003e\n\u003cli\u003eModel 10 (square butt variants)\u003c\/li\u003e\n\u003cli\u003eModel 13 (square butt variants)\u003c\/li\u003e\n\u003cli\u003eModel 14 (square butt variants)\u003c\/li\u003e\n\u003cli\u003eModel 64 (square butt variants)\u003c\/li\u003e\n\u003cli\u003eModel 65 (square butt variants)\u003c\/li\u003e\n\u003cli\u003eModel 66 (square butt variants)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Round butt K Frame models use a different strain screw. Verify your grip frame configuration before ordering.\u003c\/p\u003e\u003ch3\u003eCondition Notes\u003c\/h3\u003e\u003cp\u003eUsed factory original part. Shows normal wear consistent with service use. Fully functional.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41549998194746,"sku":"15173","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC02074.jpg?v=1784739547","url":"https:\/\/usagunsandgear.com\/products\/sw-k-frame-model-15-4-strain-screw-square-butt-used-15173","provider":"USA Guns And Gear","version":"1.0","type":"link"}