{"id":108913,"date":"2026-10-15T21:03:09","date_gmt":"2026-10-16T02:03:09","guid":{"rendered":"https:\/\/onyxarms.com\/index.php\/product\/dd-m4a1-fsp-upr-rcvr-14-5-pw-556-fde\/"},"modified":"2026-10-15T21:03:09","modified_gmt":"2026-10-16T02:03:09","slug":"dd-m4a1-fsp-upr-rcvr-14-5-pw-556-fde","status":"publish","type":"product","link":"https:\/\/onyxarms.com\/index.php\/product\/dd-m4a1-fsp-upr-rcvr-14-5-pw-556-fde\/","title":{"rendered":"DD M4A1 FSP UPR RCVR 14.5 PW 556 FDE"},"content":{"rendered":"<p>This Daniel Defense M4A1 FSP AR15 style Upper Receiver Group was built for customers wanting a firearm inspired by USSOCOM SOPMOD Block II. This upper features the M4A1 FSP RIS II picatinny quad rail in Flat Dark Earth, a 14.5&#8243; M4 profile barrel, Mil-Spec F-Marked front sight base, Surefire SF3P flash hider \/ suppressor adapter, A1.5 Fixed Rear Sight, M16 profile full auto bolt carrier group, and Rail Mounted QD Swivel Attachment Point with QD swivel.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DD M4A1 FSP UPR RCVR 14.5 PW 556 FDE<\/p>\n","protected":false},"featured_media":108905,"comment_status":"open","ping_status":"closed","template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[1327],"product_tag":[],"class_list":["post-108913","product","type-product","status-publish","has-post-thumbnail","product_cat-ar15-uppers","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product\/108913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/comments?post=108913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media\/108905"}],"wp:attachment":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media?parent=108913"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=108913"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=108913"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=108913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}