{"id":6561,"date":"2026-07-26T22:48:33","date_gmt":"2026-07-26T22:48:33","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&p=6561"},"modified":"2026-07-26T22:48:40","modified_gmt":"2026-07-26T22:48:40","slug":"rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/","title":{"rendered":"Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic"},"content":{"rendered":"

Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online<\/h2>\n
ROCK ISLAND ARMORY<\/strong>
\n3-IN-1 PUMP ACTION<\/strong>
\n\u2022Pump-action for self defense, tactical or sports shooting
\n\u2022Includes (1) cylinder bore smooth barrel & (1) vent rib barrel
\n\u2022Marine chrome aluminum receiver w\/rear sight serration
\n\u2022Bead front sight
\n\u2022Synthetic rear removable stock & optional pistol grip
\n\u2022Ribbed synthetic forend
\n\u2022Sling swivels
\n\u20224-round capacity
\n\u2022Slug, Full, Modified & Improved cylinder chokes
\n\u2022OAL: 39″
\n\u2022Wt.: 6.17 lbs.<\/div>\n
\n\n\n\n\n\n\n
Product Information<\/strong><\/td>\n<\/tr>\n
Gauge<\/td>\n12 Gauge<\/td>\n<\/tr>\n
Overall Length<\/td>\n39″<\/td>\n<\/tr>\n
Capacity<\/td>\n4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Model: MR25P101MC<\/strong><\/div>\n
<\/div>\n
Condition: Factory New<\/strong><\/div>\n
<\/div>\n
UPC: 812285025704<\/strong><\/div>\n
<\/div>\n
MFG: Rock Island Armor<\/strong><\/div>\n","protected":false},"featured_media":6591,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[164,197,202],"product_tag":[],"class_list":["post-6561","product","type-product","status-publish","product_cat-firearms","product_cat-long-guns-for-sale","product_cat-shotguns-for-sale","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nBuy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online<\/title>\n<meta name=\"description\" content=\"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor\" \/>\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\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online\" \/>\n<meta property=\"og:description\" content=\"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:48:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png\" \/>\n\t<meta property=\"og:image:width\" content=\"637\" \/>\n\t<meta property=\"og:image:height\" content=\"345\" \/>\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\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/\",\"name\":\"Buy Rock Island Armory Armory ARM 12G 18.5\\\/28 4RD CHR Synthetic Online\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png\",\"datePublished\":\"2026-07-26T22:48:33+00:00\",\"dateModified\":\"2026-07-26T22:48:40+00:00\",\"description\":\"Buy Rock Island Armory Armory ARM 12G 18.5\\\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/#primaryimage\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png\",\"width\":637,\"height\":345},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\\\/#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\":\"Rock Island Armory Armory ARM 12G 18.5\\\/28 4RD CHR Synthetic\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\",\"name\":\"Canada\",\"description\":\"Premium Guns, Ammo & Tactical Gear\",\"publisher\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#organization\",\"name\":\"Canada\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/logo-land.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/logo-land.png\",\"width\":927,\"height\":221,\"caption\":\"Canada\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online","description":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor","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\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/","og_locale":"en_US","og_type":"article","og_title":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online","og_description":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor","og_url":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/","og_site_name":"Canada","article_modified_time":"2026-07-26T22:48:40+00:00","og_image":[{"width":637,"height":345,"url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.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\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/","url":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/","name":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online","isPartOf":{"@id":"https:\/\/landmarkfirearms.com\/ca\/#website"},"primaryImageOfPage":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/#primaryimage"},"image":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/#primaryimage"},"thumbnailUrl":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png","datePublished":"2026-07-26T22:48:33+00:00","dateModified":"2026-07-26T22:48:40+00:00","description":"Buy Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic Online. Pump-action for self defense, tactical or sports shooting. MFG: Rock Island Armor","breadcrumb":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/#primaryimage","url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png","contentUrl":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/buy-Rock-Island-Armory-Armory-ARM-12G-18.528-4RD-CHR-Synthetic-online.png","width":637,"height":345},{"@type":"BreadcrumbList","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/rock-island-armory-armory-arm-12g-18-5-28-4rd-chr-synthetic\/#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":"Rock Island Armory Armory ARM 12G 18.5\/28 4RD CHR Synthetic"}]},{"@type":"WebSite","@id":"https:\/\/landmarkfirearms.com\/ca\/#website","url":"https:\/\/landmarkfirearms.com\/ca\/","name":"Canada","description":"Premium Guns, Ammo & Tactical Gear","publisher":{"@id":"https:\/\/landmarkfirearms.com\/ca\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/landmarkfirearms.com\/ca\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/landmarkfirearms.com\/ca\/#organization","name":"Canada","url":"https:\/\/landmarkfirearms.com\/ca\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/landmarkfirearms.com\/ca\/#\/schema\/logo\/image\/","url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/logo-land.png","contentUrl":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/logo-land.png","width":927,"height":221,"caption":"Canada"},"image":{"@id":"https:\/\/landmarkfirearms.com\/ca\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/product\/6561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/comments?post=6561"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/media\/6591"}],"wp:attachment":[{"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/media?parent=6561"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/product_brand?post=6561"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/product_cat?post=6561"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/landmarkfirearms.com\/ca\/wp-json\/wp\/v2\/product_tag?post=6561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}