{"id":7881,"date":"2026-07-26T22:57:25","date_gmt":"2026-07-26T22:57:25","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&#038;p=7881"},"modified":"2026-07-26T22:57:45","modified_gmt":"2026-07-26T22:57:45","slug":"sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\/","title":{"rendered":"Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16&#8243; Fluted Barrel Stainless and Black Pistol Grip"},"content":{"rendered":"<h1 class=\"text-left heading-main\" style=\"text-align: center;\">Buy Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16&#8243; Fluted Barrel Stainless and Black Pistol Grip<\/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 Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16&#8243; Fluted Barrel Stainless and Black Pistol Grip. After two full years of competitive shooting with SIG SAUER&#8217;S SDI Comp Rifle, Team SIG&#8217;s Daniel Horner has refined the platform to meet his competition needs and developed the ultimate 3-Gun rifle, the M400-DH3 from SIG Custom Works. The first-ever rifle from SIG Custom Works features full-ambi controls with the SIG-designed ambi bolt-catch and bolt-release, a Timney DH3 Two-Stage Trigger, a custom DH3 Adjustable stock, fluted stainless 223 Wylde barrel (for optimal 5.56 and 223 Rem performance) and a 3 Chamber Compensator for muzzle rise reduction. The M400-DH3 from SIG Custom Works gives you the same competitive edge and the same rifle used by 10-time 3 gun champion Daniel Horner.<\/p>\n<p>&nbsp;<\/p>\n<p><b>Features<\/b><\/p>\n<ul>\n<li>DH3 Adjustable Stock<\/li>\n<li>2-Stage Adjustable Timney Daniel Horner Signature Trigger<\/li>\n<li>Low Profile 3-Gun Handguard<\/li>\n<li>Ambidextrous Controls Including Bolt Catch\/Release<\/li>\n<li>Fluted Competition Barrel<\/li>\n<\/ul>\n<\/div>\n<div class=\"product-section-logos\"><a class=\"inline-block\" href=\"https:\/\/www.midwayusa.com\/sig-sauer\/b?bid=2139\" aria-label=\"Shop Sig Sauer products\"><img decoding=\"async\" class=\"product-section-logo\" src=\"https:\/\/media.mwstatic.com\/images\/vendorlogos\/2139.jpg?imwidth=150\" alt=\"Sig Sauer logo\" width=\"150\" height=\"150\" \/><\/a><\/div>\n<\/div>\n<p><span class=\"text-bold\">Made In\u00a0United States of America<\/span><\/p>\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\">223 Wylde<\/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\">30 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\">7 Pound<\/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\">34.5 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\">16 Inches<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Twist<\/td>\n<td class=\"product-specs-table-definition\">1:8<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Threads<\/td>\n<td class=\"product-specs-table-definition\">1\/2&#8243;-28<\/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\">Two Stage Adjustable<\/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\">Selector<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Threaded Muzzle<\/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\">Barrel Finish<\/td>\n<td class=\"product-specs-table-definition\">Stainless<\/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\">Muzzle Device<\/td>\n<td class=\"product-specs-table-definition\">Compensator<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Scope Included<\/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 Finish<\/td>\n<td class=\"product-specs-table-definition\">Cerakote Stainless<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Magazine Style<\/td>\n<td class=\"product-specs-table-definition\">Detachable<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Fluting<\/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\">Country of Origin<\/td>\n<td class=\"product-specs-table-definition\">United States of America<\/td>\n<\/tr>\n<tr class=\"product-specs-table-container \">\n<td class=\"product-specs-table-detail\">Included Mounts<\/td>\n<td class=\"product-specs-table-definition\">Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<ul class=\"product-identifiers stack-m\">\n<li class=\"text-bold\">Product #:\u00a0981032<\/li>\n<li class=\"vendor-product-number\">\u00a0Manufacturer #:\u00a0RM400-SDI-16B-DH3<\/li>\n<li class=\"upc-number\">\u00a0UPC #:\u00a0798681639519<\/li>\n<\/ul>\n","protected":false},"featured_media":7911,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[164,198],"product_tag":[],"class_list":["post-7881","product","type-product","status-publish","product_cat-firearms","product_cat-rifles-for-sale","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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After two full years of competitive shooting with SIG SAUER&#039;S SDI Comp Rifle, Team SIG&#039;s Daniel Horner has refined the platform to meet his competition needs and developed the ultimate 3-Gun rifle, the M400-DH3 from SIG Custom Works.\" \/>\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\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-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 Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16&quot; Fluted Barrel Stainless and Black Pistol Grip | Canada\" \/>\n<meta property=\"og:description\" content=\"Buy Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16&quot; Fluted Barrel Stainless and Black Pistol Grip. After two full years of competitive shooting with SIG SAUER&#039;S SDI Comp Rifle, Team SIG&#039;s Daniel Horner has refined the platform to meet his competition needs and developed the ultimate 3-Gun rifle, the M400-DH3 from SIG Custom Works.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:57:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Buy-Sig-Sauer-M400-DH3-Semi-Automatic-Centerfire-Rifle-223-Wylde-16-Fluted-Barrel-Stainless-and-Black-Pistol-Grip.png\" \/>\n\t<meta property=\"og:image:width\" content=\"723\" \/>\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=\"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\\\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\\\/\",\"name\":\"Buy Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16\\\" Fluted Barrel Stainless and Black Pistol Grip | Canada\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/sig-sauer-m400-dh3-semi-automatic-centerfire-rifle-223-wylde-16-fluted-barrel-stainless-and-black-pistol-grip\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Buy-Sig-Sauer-M400-DH3-Semi-Automatic-Centerfire-Rifle-223-Wylde-16-Fluted-Barrel-Stainless-and-Black-Pistol-Grip.png\",\"datePublished\":\"2026-07-26T22:57:25+00:00\",\"dateModified\":\"2026-07-26T22:57:45+00:00\",\"description\":\"Buy Sig Sauer M400 DH3 Semi-Automatic Centerfire Rifle 223 Wylde 16\\\" Fluted Barrel Stainless and Black Pistol Grip. 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