{"product_id":"rise-armament-ra6arccublk18-6mm-arc-18-ar-15-complete-upper-receiver-black-anodized","title":"Rise Armament RA6ARCCUBLK18 6mm ARC 18\" AR-15 Complete Upper Receiver - Black Anodized","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eRise Armament RA6ARCCUBLK18\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003eAR-15 upper receiver\u003c\/strong\u003e chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e6mm ARC\u003c\/span\u003e\u003c\/strong\u003e, factory-assembled and ready to mate with any mil-spec AR-15 lower receiver.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt the core is an \u003cstrong\u003e18\" stainless steel barrel\u003c\/strong\u003e with a \u003cstrong\u003e1:7 twist\u003c\/strong\u003e, threaded \u003cstrong\u003e1\/2x28\u003c\/strong\u003e for standard muzzle device fitment. The barrel is paired with a \u003cstrong\u003erifle-length gas system\u003c\/strong\u003e for reliable cycling with 6mm ARC loads.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003eblack anodized aluminum\u003c\/strong\u003e upper carries a full-length \u003cstrong\u003ePicatinny rail\u003c\/strong\u003e for optic mounting. An \u003cstrong\u003eambidextrous charging handle\u003c\/strong\u003e is included for left- and right-handed use. A \u003cstrong\u003e15.25\" free-float M-LOK handguard\u003c\/strong\u003e wraps the barrel and provides versatile mounting points for accessories.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDrop the RA6ARCCUBLK18 onto any mil-spec AR-15 lower to complete a 6mm ARC rifle.\u003c\/span\u003e\u003c\/p\u003e","brand":"Rise Armament","offers":[{"title":"Default Title","offer_id":55047286686018,"sku":"177603","price":880.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_1c781ddb-aa73-4909-bc8c-393c53dabe57.png?v=1784699934","url":"https:\/\/centerfiresystems.com\/products\/rise-armament-ra6arccublk18-6mm-arc-18-ar-15-complete-upper-receiver-black-anodized","provider":"Centerfire Systems","version":"1.0","type":"link"}