{"product_id":"smith-wesson-l-frame-model-586-strain-screw-round-butt-blue-586172","title":"Smith \u0026 Wesson L Frame Model 586 Strain Screw - Round Butt Blue Steel - Used OEM 586172","description":"\u003cp\u003eThis listing is for the strain screw only.\u003c\/p\u003e\u003cp\u003eGenuine Smith \u0026amp; Wesson OEM strain screw for the L Frame Model 586 revolver with \u003cstrong\u003eround butt grips\u003c\/strong\u003e, chambered in .357 Magnum. Blue steel finish. The strain screw tensions the mainspring at the bottom of the grip frame, directly affecting trigger pull weight and hammer reliability. Used, original factory part in good working condition — threads clean and functional, no stripping or damage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 586172\u003c\/li\u003e\n\u003cli\u003eFrame: L Frame\u003c\/li\u003e\n\u003cli\u003eGrip Style: Round Butt\u003c\/li\u003e\n\u003cli\u003eFinish: Blue Steel\u003c\/li\u003e\n\u003cli\u003eCondition: Used OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eModel Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSmith \u0026amp; Wesson L Frame Model 586 (.357 Magnum) — Round Butt configuration\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eImportant: This screw is for round butt grip frames only — not compatible with square butt Model 586 variants. Strain screw tension directly affects trigger pull weight: tightening increases pull weight, loosening decreases it. Proper adjustment requires knowledge of mainspring function. Professional installation by a qualified gunsmith is recommended.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eWe specialize in new, used, and new old stock Smith \u0026amp; Wesson double action revolver parts. Questions about compatibility? Shoot us an email or give us a call — we're happy to help.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41244493840442,"sku":"586172","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSCF0005_4c79d55d-78e3-455f-b8e7-f69f774ee621.jpg?v=1771015238","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-l-frame-model-586-strain-screw-round-butt-blue-586172","provider":"USA Guns And Gear","version":"1.0","type":"link"}