{"id":51009,"date":"2025-11-03T23:09:26","date_gmt":"2025-11-04T03:09:26","guid":{"rendered":"https:\/\/www.un9.org\/shop\/product\/hk-mr556-a4-rifle-5-56mm-30rd-magazine-16-5-barrel-black\/"},"modified":"2026-03-04T05:20:53","modified_gmt":"2026-03-04T09:20:53","slug":"hk-mr556-a4-rifle-5-56mm-30rd-magazine-16-5-barrel-black","status":"publish","type":"product","link":"https:\/\/www.un9.org\/shop\/product\/hk-mr556-a4-rifle-5-56mm-30rd-magazine-16-5-barrel-black\/","title":{"rendered":"H&amp;K MR556 A4 Rifle 5.56mm 30rd Magazine 16.5&#8243; Barrel Black"},"content":{"rendered":"<p><strong>Specifications:<\/strong><\/p>\n<ul>\n<li>Caliber: 5.56mm<\/li>\n<li>Stock Extended Length: 36.5 in<\/li>\n<li>Stock Retracted Length: 33.25 in<\/li>\n<li>Width: 3.07 in<\/li>\n<li>Height: 7.5 in<\/li>\n<li>Barrel Length: 16.5 in<\/li>\n<li>Weight: 7.67 lb<\/li>\n<li>Magazine capacity: 30<\/li>\n<li>Trigger Pull: 4.5 &#8211; 5.6 lb<\/li>\n<li>Barrel Profile: 6 lands &amp; grooves right twist 1 in 7 in<\/li>\n<li>Sights: Optics ready<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H&amp;K MR556 A4 Rifle 5.56mm 30rd Magazine 16.5&#8243; Barrel Black<\/p>\n","protected":false},"featured_media":51008,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[51871],"product_cat":[70],"product_tag":[52195],"class_list":{"0":"post-51009","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-heckler-koch-hk","7":"product_cat-ar-rifles","8":"product_tag-online-only","9":"product_shipping_class-free_shipping","11":"first","12":"outofstock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/product\/51009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/comments?post=51009"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/media\/51008"}],"wp:attachment":[{"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/media?parent=51009"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/product_brand?post=51009"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/product_cat?post=51009"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.un9.org\/shop\/wp-json\/wp\/v2\/product_tag?post=51009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}