{"id":54700,"date":"2026-10-15T13:56:18","date_gmt":"2026-10-15T18:56:18","guid":{"rendered":"https:\/\/onyxarms.com\/index.php\/product\/rs-reg-trijicon-mro-modular-upper\/"},"modified":"2026-10-15T13:56:18","modified_gmt":"2026-10-15T18:56:18","slug":"rs-reg-trijicon-mro-modular-upper","status":"publish","type":"product","link":"https:\/\/onyxarms.com\/index.php\/product\/rs-reg-trijicon-mro-modular-upper\/","title":{"rendered":"RS REG TRIJICON MRO MODULAR UPPER"},"content":{"rendered":"<p>In 2012, RS Regulate began rolling out the first models of the AK-300 Modular Side Mount System, which now features six fully modular uppers and nine different lowers: a front-biased, a rear-biased, and a full-length lower for most Eastern European AK side rails; a front-biased and full-length lower for Yugo\/Serbian rifles; a PSL and Romanian M10\/RH10 rifles; a Century Arms proprietary side rail; and even a rear-biased lower for Czech vz. 58s.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RS REG TRIJICON MRO MODULAR UPPER<\/p>\n","protected":false},"featured_media":54699,"comment_status":"open","ping_status":"closed","template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[1312],"product_tag":[],"class_list":["post-54700","product","type-product","status-publish","has-post-thumbnail","product_cat-other-ak-accessories-parts","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\/54700","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=54700"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media\/54699"}],"wp:attachment":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media?parent=54700"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=54700"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=54700"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=54700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}