{"product_id":"carlsons-20-gauge-invector-rifled-choke-tube-304-stainless-steel","title":"Carlsons 20 Gauge Invector Rifled Choke Tube - 304 Stainless Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eCarlsons 20 Gauge Invector Rifled Choke Tube\u003c\/span\u003e\u003c\/strong\u003e drops into a standard Invector-choked shotgun and turns a smoothbore into a slug-shooting platform by imparting stabilizing spin to saboted and rifled slugs. Precision-machined from \u003cstrong\u003e304 high-stress stainless steel\u003c\/strong\u003e with a low-glare \u003cstrong\u003ematte black\u003c\/strong\u003e finish, this replacement choke is built for hunters who want rifle-like accuracy out of their 20 gauge shotgun at \u003cstrong\u003e70 to 100 yard\u003c\/strong\u003e slug ranges.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003e1 in 35 right-hand rifle twist\u003c\/strong\u003e inside the tube grips the slug jacket and stabilizes it in flight, substantially tightening groups compared to a smoothbore slug barrel. The internal groove diameter measures \u003cstrong\u003e.620 inch\u003c\/strong\u003e for proper engagement with 20 gauge sabot and rifled slug projectiles, and the tube protrudes \u003cstrong\u003e.625 to 1.3 inches\u003c\/strong\u003e beyond the muzzle of the host barrel depending on the specific shotgun model.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis choke is cut to the standard \u003cstrong\u003eWinchester\/Browning Invector\u003c\/strong\u003e thread pattern and fits \u003cstrong\u003eWinchester\u003c\/strong\u003e, \u003cstrong\u003eBrowning\u003c\/strong\u003e, \u003cstrong\u003eMossberg\u003c\/strong\u003e, \u003cstrong\u003eSavage\u003c\/strong\u003e, and \u003cstrong\u003eWeatherby\u003c\/strong\u003e shotguns that use original Invector-style choke threading. It is not compatible with the longer \u003cstrong\u003eInvector Plus\u003c\/strong\u003e or other proprietary choke systems.\u003c\/span\u003e\u003c\/p\u003e","brand":"Carlsons","offers":[{"title":"Default Title","offer_id":55321757024578,"sku":"C40041","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_3e26dc4e-2389-4714-a27a-738dac5bbf29.jpg?v=1785147653","url":"https:\/\/centerfiresystems.com\/products\/carlsons-20-gauge-invector-rifled-choke-tube-304-stainless-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}