{"id":2616,"date":"2026-07-26T22:21:57","date_gmt":"2026-07-26T22:21:57","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&#038;p=2616"},"modified":"2026-07-26T22:22:05","modified_gmt":"2026-07-26T22:22:05","slug":"panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/","title":{"rendered":"Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun 20&#8243; Barrel Black Pistol Grip"},"content":{"rendered":"<h1 class=\"text-left heading-main\" style=\"text-align: center;\">Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun<\/h1>\n<section id=\"overview\" class=\"product-information stack-l\">\n<div class=\"product-section-wrapper\">\n<div class=\"grid product-section-content\">\n<div class=\"product-section-overview\">\n<p>Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.<\/p>\n<p>A picatinny rail across the top of the receiver allows for easy mounting of optics, in addition to the included flip up sights. It\u00a0 also comes with a stylish barrel shroud and three chokes. The shotgun comes boxed, with two 5 round magazines, flip up sights, cleaning kit, manual, and one year warranty from the importer. Panzer continues to improve on some of the best AR 15 style shotguns on the market today. Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun<\/p>\n<p><b>Features<\/b><\/p>\n<ul>\n<li>AR-15 style controls<\/li>\n<li>Upgraded G4 gas system, with high velocity and standard velocity pistons<\/li>\n<li>3\u2033 Magnum chamber, allows for use of 2 3\/4\u2033 and 3\u2033 shells<\/li>\n<li>Thin Key Mod Handguard<\/li>\n<li>Flip up front and rear sights<\/li>\n<li>Three chokes included: Full, Modified, and Cylinder<\/li>\n<li>Two 5 round magazines<\/li>\n<li>Adjustable cheek riser and rubber recoil pad on buttstock<\/li>\n<li>Cleaning Kit<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"product-section-logos\"><a class=\"inline-block\" href=\"https:\/\/www.midwayusa.com\/panzer-arms\/b?bid=1100053\" aria-label=\"Shop Panzer Arms products\"><img decoding=\"async\" class=\"product-section-logo\" src=\"https:\/\/media.mwstatic.com\/images\/vendorlogos\/1100053.jpg?imwidth=150\" alt=\"Panzer Arms logo\" width=\"150\" height=\"150\" \/><\/a><\/div>\n<\/div>\n<div class=\"prop-banner\"><img decoding=\"async\" class=\"inline-block margin-right-xs\" src=\"https:\/\/media.mwstatic.com\/external\/fonts\/fontawesome\/svg\/prop-65-warning-v1.svg\" alt=\"warning-icon\" width=\"16\" height=\"14\" aria-hidden=\"true\" \/><strong>WARNING:\u00a0<\/strong>Cancer and Reproductive Harm &#8211; www.P65Warnings.ca.gov.<\/div>\n<\/div>\n<\/section>\n<section id=\"specifications\" class=\"stack-l\">\n<h2 class=\"bg-blue-dark text-white stack-m inset-squish-m text-transform-none\">Specifications<\/h2>\n<div class=\"product-section-wrapper product-specifications\">\n<h3>Product Information<\/h3>\n<table class=\"product-specs-table padding-none stack-l width-100\">\n<tbody>\n<tr class=\"product-specs-table-container is-selectable\">\n<td class=\"product-specs-table-detail\">Cartridge<\/td>\n<td class=\"product-specs-table-definition\">12 Gauge<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Capacity<\/td>\n<td class=\"product-specs-table-definition\">5 Round<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Weight<\/td>\n<td class=\"product-specs-table-definition\">9.1 Pound<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Shell Length<\/td>\n<td class=\"product-specs-table-definition\">3&#8243;<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Overall Length<\/td>\n<td class=\"product-specs-table-definition\">40.5 Inches<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Barrel Length<\/td>\n<td class=\"product-specs-table-definition\">20 Inches<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Hand<\/td>\n<td class=\"product-specs-table-definition\">Right<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Youth<\/td>\n<td class=\"product-specs-table-definition\">No<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Action Type<\/td>\n<td class=\"product-specs-table-definition\">Semi-Automatic<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Stock Type<\/td>\n<td class=\"product-specs-table-definition\">Pistol Grip<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Stock Material<\/td>\n<td class=\"product-specs-table-definition\">Synthetic<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Stock Color<\/td>\n<td class=\"product-specs-table-definition\">Black<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Trigger Type<\/td>\n<td class=\"product-specs-table-definition\">Single Action<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Safety<\/td>\n<td class=\"product-specs-table-definition\">Manual<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Sights<\/td>\n<td class=\"product-specs-table-definition\">Adjustable<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Barrel Finish<\/td>\n<td class=\"product-specs-table-definition\">Black<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Ported<\/td>\n<td class=\"product-specs-table-definition\">No<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Frame Material<\/td>\n<td class=\"product-specs-table-definition\">Aluminum<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Frame Finish<\/td>\n<td class=\"product-specs-table-definition\">Black<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 id=\"delivery\">Delivery Information<\/h3>\n<table class=\"product-specs-table padding-none stack-l width-100\">\n<tbody>\n<tr class=\"product-specs-table-container\">\n<td class=\"product-specs-table-detail\">Must Ship to FFL Dealer<button class=\"fas fa-question-circle tooltip-question-btn\" type=\"button\" aria-label=\"Open Tooltip about Must Ship to FFL Dealer\"><\/button><\/td>\n<td class=\"product-specs-table-definition\">Yes<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container\">\n<td class=\"product-specs-table-detail\">Shipping Weight<button class=\"fas fa-question-circle tooltip-question-btn\" type=\"button\" aria-label=\"Open Tooltip about Shipping Weight\"><\/button><\/td>\n<td class=\"product-specs-table-definition\">12.780 Pounds<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<div class=\"l-upper-product-content \">\n<div id=\"product-identifiers\" class=\"l-product-identifiers stack-m\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<ul class=\"product-identifiers stack-m\">\n<li class=\"text-bold\">Product #:\u00a0753760<\/li>\n<li class=\"vendor-product-number\">\u00a0Manufacturer #:\u00a0AR12KMRSSB<\/li>\n<li class=\"upc-number\">\u00a0UPC #:\u00a08682419000332<\/li>\n<\/ul>\n","protected":false},"featured_media":2646,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[164,165],"product_tag":[],"class_list":["post-2616","product","type-product","status-publish","product_cat-firearms","product_cat-shotguns","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 Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada<\/title>\n<meta name=\"description\" content=\"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.\" \/>\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\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada\" \/>\n<meta property=\"og:description\" content=\"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:22:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png\" \/>\n\t<meta property=\"og:image:width\" content=\"736\" \/>\n\t<meta property=\"og:image:height\" content=\"417\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/\",\"name\":\"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png\",\"datePublished\":\"2026-07-26T22:21:57+00:00\",\"dateModified\":\"2026-07-26T22:22:05+00:00\",\"description\":\"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/#primaryimage\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png\",\"width\":736,\"height\":417},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\\\/#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\":\"Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun 20&#8243; Barrel Black Pistol Grip\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\",\"name\":\"Canada\",\"description\":\"Premium Guns, Ammo &amp; 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 Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada","description":"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.","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\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/","og_locale":"en_US","og_type":"article","og_title":"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada","og_description":"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.","og_url":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/","og_site_name":"Canada","article_modified_time":"2026-07-26T22:22:05+00:00","og_image":[{"width":736,"height":417,"url":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/","url":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/","name":"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun | Canada","isPartOf":{"@id":"https:\/\/landmarkfirearms.com\/ca\/#website"},"primaryImageOfPage":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/#primaryimage"},"image":{"@id":"https:\/\/landmarkfirearms.com\/ca\/product\/panzer-arms-ar-12-kmr-12-gauge-semi-automatic-shotgun-20-barrel-black-pistol-grip\/#primaryimage"},"thumbnailUrl":"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-Panzer-Arms-AR-12-KMR-12-Gauge-Semi-Automatic-Shotgun-.png","datePublished":"2026-07-26T22:21:57+00:00","dateModified":"2026-07-26T22:22:05+00:00","description":"Buy Panzer Arms AR 12 KMR 12 Gauge Semi-Automatic Shotgun. 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