{"product_id":"carlsons-bismuth-bone-buster-20-gauge-extended-range-remington-rem-choke-17-4-stainless-steel-choke-tube","title":"Carlsons Bismuth Bone Buster 20 Gauge Extended Range Remington Rem Choke 17-4 Stainless Steel Choke Tube","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eCarlsons Bismuth Bone Buster\u003c\/span\u003e\u003c\/strong\u003e choke tube is purpose-built for hunters running \u003cstrong\u003ebismuth shot\u003c\/strong\u003e through shotguns threaded in the \u003cstrong\u003eRemington Rem Choke\u003c\/strong\u003e pattern. Part of Carlson's dedicated Bone Buster line, this choke is engineered specifically to wring dense, even patterns out of bismuth loads — a payload that notoriously over-patterns and spreads in conventional factory chokes.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e20 Gauge\u003c\/span\u003e\u003c\/strong\u003e tube is CNC precision machined from \u003cstrong\u003e17-4 heat-treated stainless steel\u003c\/strong\u003e, the same corrosion-resistant alloy Carlson's uses across its premium choke lineup. The defining feature of the Bone Buster series is a \u003cstrong\u003elonger parallel section inside the choke\u003c\/strong\u003e compared to standard factory tubes, giving the bismuth shot column a tighter, more uniform constriction window before it exits the barrel. The payoff is denser downrange patterns at distance — ideal for waterfowl hunters and extended-range upland work.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eConfigured for \u003cstrong\u003eRemington Rem Choke\u003c\/strong\u003e threads with an \u003cstrong\u003eExtended Range\u003c\/strong\u003e constriction rated at \u003cstrong\u003e.040\"\u003c\/strong\u003e, this single choke tube installs in any 20 gauge Remington-choke-compatible barrel. The polished \u003cstrong\u003e17-4 PH stainless steel\u003c\/strong\u003e construction resists corrosion through wet, salty waterfowl environments and many seasons of hard use.\u003c\/span\u003e\u003c\/p\u003e","brand":"Carlsons","offers":[{"title":"Default Title","offer_id":55000132354370,"sku":"139370","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_a3bea583-b781-4f13-bd29-fe72f64e2727.png?v=1784401454","url":"https:\/\/centerfiresystems.com\/products\/carlsons-bismuth-bone-buster-20-gauge-extended-range-remington-rem-choke-17-4-stainless-steel-choke-tube","provider":"Centerfire Systems","version":"1.0","type":"link"}