{"id":1350,"date":"2026-01-24T12:46:30","date_gmt":"2026-01-24T12:46:30","guid":{"rendered":"https:\/\/polymer80firearms.com\/?post_type=product&#038;p=1350"},"modified":"2026-01-24T12:46:45","modified_gmt":"2026-01-24T12:46:45","slug":"dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper","status":"publish","type":"product","link":"https:\/\/usaguncenter.com\/polymer80\/product\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\/","title":{"rendered":"DPMS 7.5\u2033 300AAC Blackout M-lok Upper"},"content":{"rendered":"<div class=\"wc-tab-inner wd-entry-content\">\n<h2>Description<\/h2>\n<p>To compliment our 80 lowers, we offer AR15 complete uppers from DPMS which will work perfectly for your next build. This complete upper features a m-lok handguard and 7.5\u2033 barrel chambered in 300AAC Blackout (300 Blackout).<\/p>\n<p>These uppers from DPMS\u00a0come completely assembled with a forward assist, dust cover, bolt carrier group, and charging handle so they are ready to go right out of the box!<\/p>\n<h3>Features:<\/h3>\n<ul>\n<li>Barrel Length:\u00a07.5\u2033<\/li>\n<li>Gas System:\u00a0Pistol Length<\/li>\n<li>Barrel Profile:\u00a0Heavy<\/li>\n<li>Barrel Steel:\u00a04150V\u00a0<\/li>\n<li>Barrel Finish:\u00a0Phosphate<\/li>\n<li>Chrome Lining:\u00a0None<\/li>\n<li>Muzzle Thread:\u00a05\/8-24<\/li>\n<li>Chamber:\u00a0300AAC Blackout<\/li>\n<li>Twist Rate:\u00a01:8<\/li>\n<li>Barrel Extension:\u00a0M4<\/li>\n<li>Diameter at Gas Block:\u00a0.750<\/li>\n<li>Gas Block Type:\u00a0Low-Profile<\/li>\n<li>Muzzle Device:\u00a0A2 Style Flash Hider<\/li>\n<li>Receiver Material:\u00a0Forged 7075 T6<\/li>\n<li>Receiver Type:\u00a0M4<\/li>\n<li>Handguard Type:\u00a07\u2033 Lightweight M-Lok Free Float Rail<\/li>\n<li>Bolt Carrier Group Included:\u00a0Yes<\/li>\n<li>Bolt Steel:\u00a0Carpenter 158<\/li>\n<li>Bolt Carrier Profile:\u00a0Full-Auto<\/li>\n<li>Charging Handle Included:\u00a0Yes<\/li>\n<li>Overall Length:\u00a017\u2033<\/li>\n<li>BCG &amp; Charging Handle Included<\/li>\n<\/ul>\n<p>The DPMS M-lok Rail upper is back and ready for all the accessories that you can dream. Exclusive Panther designed handguard with markings is only available on these new line of upper receivers.<\/p>\n<div>\n<div>\n<div>\n<p>Barrel: 7.5\u2033 Chambered in 300AAC Blackout, with a 1:8 twist rate, M4 barrel extension, and a pistol length gas system.\u00a0 This phosphate barrel is finished off with a DPMS Lightweight M-Lok free-float rail, .750\u2033 diameter low profile gas block, and an A2 flash hider.<\/p>\n<p>Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.<\/p>\n<p>Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>Each upper is assembled to order with care, and test fired by DPMS. If there are any issues please contact DPMS as units are received sealed and sent out to customers sealed from DPMS.<\/p>\n<p>Bolt carrier group and charging handle included.<\/p>\n<h3>Shipping Restrictions:\u00a0<\/h3>\n<p>This item is restricted from shipping to the following:\u00a0Colorado, Connecticut, Hawaii, Illinois, Maryland, Nevada, New Jersey, New York, Philadelphia, York City, and Reading Pennsylvania, Rhode Island, Washington, and Washington D.C.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Description To compliment our 80 lowers, we offer AR15 complete uppers from DPMS which will work perfectly for your next build. This complete upper features a m-lok handguard and 7.5\u2033 barrel chambered in 300AAC Blackout (300 Blackout). These uppers from DPMS\u00a0come completely assembled with a forward assist, dust cover, bolt carrier group, and charging handle [&hellip;]<\/p>\n","protected":false},"featured_media":1380,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","iawp_total_views":0},"product_brand":[23],"product_cat":[34],"product_tag":[],"class_list":{"0":"post-1350","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-polymer80","7":"product_cat-complete-ar-15-upper-receivers","9":"first","10":"instock","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v18.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>DPMS 7.5\u2033 300AAC Blackout M-lok Upper - Polymer 80 Firearms - Authorized Polymer80 Distributor<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/usaguncenter.com\/polymer80\/product\/dpms-7-5\u2033-300aac-blackout-m-lok-upper\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DPMS 7.5\u2033 300AAC Blackout M-lok Upper\" \/>\n<meta property=\"og:description\" content=\"Description To compliment our 80 lowers, we offer AR15 complete uppers from DPMS which will work perfectly for your next build. This complete upper features a m-lok handguard and 7.5\u2033 barrel chambered in 300AAC Blackout (300 Blackout). These uppers from DPMS\u00a0come completely assembled with a forward assist, dust cover, bolt carrier group, and charging handle [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/usaguncenter.com\/polymer80\/product\/dpms-7-5\u2033-300aac-blackout-m-lok-upper\/\" \/>\n<meta property=\"og:site_name\" content=\"Polymer 80 Firearms - Authorized Polymer80 Distributor\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-24T12:46:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/usaguncenter.com\/polymer80\/wp-content\/uploads\/2026\/01\/dpms-75-300aac-blackout-m-lok-upper.png\" \/>\n\t<meta property=\"og:image:width\" content=\"386\" \/>\n\t<meta property=\"og:image:height\" content=\"65\" \/>\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:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/\",\"url\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/\",\"name\":\"DPMS 7.5\u2033 300AAC Blackout M-lok Upper - Polymer 80 Firearms - Authorized Polymer80 Distributor\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/dpms-75-300aac-blackout-m-lok-upper.png\",\"datePublished\":\"2026-01-24T12:46:30+00:00\",\"dateModified\":\"2026-01-24T12:46:45+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/#primaryimage\",\"url\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/dpms-75-300aac-blackout-m-lok-upper.png\",\"contentUrl\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/dpms-75-300aac-blackout-m-lok-upper.png\",\"width\":386,\"height\":65},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/product\\\/dpms-7-5%e2%80%b3-300aac-blackout-m-lok-upper\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"DPMS 7.5\u2033 300AAC Blackout M-lok Upper\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/#website\",\"url\":\"https:\\\/\\\/usaguncenter.com\\\/polymer80\\\/\",\"name\":\"Polymer 80 Firearms - Authorized Polymer80 Distributor\",\"description\":\"Precision Components. 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