{"id":5144,"date":"2026-07-26T22:38:27","date_gmt":"2026-07-26T22:38:27","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&#038;p=5144"},"modified":"2026-07-26T22:39:12","modified_gmt":"2026-07-26T22:39:12","slug":"fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/","title":{"rendered":"FN SLP MK1 &#038; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte"},"content":{"rendered":"<h1 class=\"nm\" style=\"text-align: center;\">Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte<\/h1>\n<p><strong>Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte: <\/strong>FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte. This fully rifled 12 gauge barrel has a 3&#8243; chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.<\/p>\n<ul>\n<li><strong>Because the fully rifled Cantilever Barrels have a slightly larger outside diameter. Your forend may have to have the inside edges that come into contact with the barrel sanded down slightly to aid in sliding the forend all the way down to the receiver.<\/strong><\/li>\n<\/ul>\n<p><strong>Fits:<\/strong><\/p>\n<ul>\n<li>FN SLP Shotguns<\/li>\n<li>Winchester Super X2 &amp; Super X3 models with a 2-3\/4&#8243; &amp; 3&#8243; receiver.<\/li>\n<\/ul>\n<p>Please Note: This barrel will only fit 2-3\/4&#8243; &amp; 3&#8243; models. DO NOT attempt the use of this barrel on 3-1\/2&#8243; models.<\/p>\n<p><strong>Manufacturer:<\/strong>\u00a0FN America<\/p>\n<p><strong>PRODUCT SPECIFICATIONS:<\/strong><\/p>\n<ul>\n<li><strong>Barrel Length:<\/strong>\u00a022&#8243;<\/li>\n<li><strong>Brand:<\/strong>\u00a0FN America<\/li>\n<li><strong>Choke Tube Series:<\/strong>\u00a0Rifled Barrel<\/li>\n<li><strong>Finish \/ Color:<\/strong>\u00a0Matte Blued<\/li>\n<li><strong>Firearm Type:<\/strong>\u00a0Shotgun<\/li>\n<li><strong>Gauge:<\/strong>\u00a012 Gauge<\/li>\n<li><strong>Material:<\/strong>\u00a0Steel<\/li>\n<li><strong>Models Fit:<\/strong>\u00a0FN SLP,Winchester Super X2, Winchester Super X3<\/li>\n<li><strong>Shell Length:<\/strong>\u00a03&#8243;<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&#8243;, Matte:<\/p>\n","protected":false},"featured_media":5225,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[170],"product_tag":[],"class_list":["post-5144","product","type-product","status-publish","product_cat-accessories","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte | Canada<\/title>\n<meta name=\"description\" content=\"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte: FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte. This fully rifled 12 gauge barrel has a 3&quot; chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte | Canada\" \/>\n<meta property=\"og:description\" content=\"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte: FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22&quot;, Matte. This fully rifled 12 gauge barrel has a 3&quot; chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:39:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png\" \/>\n\t<meta property=\"og:image:width\" content=\"511\" \/>\n\t<meta property=\"og:image:height\" content=\"476\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/\",\"name\":\"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\\\", Matte | Canada\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png\",\"datePublished\":\"2026-07-26T22:38:27+00:00\",\"dateModified\":\"2026-07-26T22:39:12+00:00\",\"description\":\"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\\\", Matte: FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\\\", Matte. This fully rifled 12 gauge barrel has a 3\\\" chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/#primaryimage\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png\",\"width\":511,\"height\":476},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"FN SLP MK1 &#038; Winchester Super X2, X3 Fully Rifled 12ga. 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Barrel 22\", Matte | Canada","description":"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\", Matte: FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\", Matte. This fully rifled 12 gauge barrel has a 3\" chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/","og_locale":"en_US","og_type":"article","og_title":"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\", Matte | Canada","og_description":"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\", Matte: FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. Barrel 22\", Matte. This fully rifled 12 gauge barrel has a 3\" chamber and matte blued finish. It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.","og_url":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/","og_site_name":"Canada","article_modified_time":"2026-07-26T22:39:12+00:00","og_image":[{"width":511,"height":476,"url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/","url":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/","name":"Buy FN SLP MK1 &amp; Winchester Super X2, X3 Fully Rifled 12ga. 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It also features a cantilever scope rail, with a rear flip up sight and also has a front fiber optic sight installed. Designed for the FN Self Loading Police (SLP) shotguns, this barrel will also fit the Winchester Super X2 &amp; Super X3 model shotguns.","breadcrumb":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/#primaryimage","url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png","contentUrl":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-FN-SLP-MK1-Winchester-Super-X2-X3-Fully-Rifled-12ga.-Barrel-22-Matte.png","width":511,"height":476},{"@type":"BreadcrumbList","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/fn-slp-mk1-winchester-super-x2-x3-fully-rifled-12ga-barrel-22-matte\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/landmarkfirearms.com\/ca\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/landmarkfirearms.com\/ca\/shop\/"},{"@type":"ListItem","position":3,"name":"FN SLP MK1 &#038; Winchester Super X2, X3 Fully Rifled 12ga. 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