{"product_id":"upper-mk18-5-56mm-ris-ii-fde","title":"Daniel Defense MK18 Upper Receiver Assembly 5.56mm RIS II FDE – Factory Complete","description":"\u003cp\u003eThe Daniel Defense MK18 Upper Receiver Assembly is a factory-built complete upper chambered in 5.56mm NATO, featuring the authentic RIS II (Rail Interface System II) handguard in Flat Dark Earth.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete AR-15 Upper Receiver Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56mm NATO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 10.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Profile:\u003c\/strong\u003e Cold hammer forged, chrome-lined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-length, pinned low-profile gas block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e Daniel Defense RIS II, Flat Dark Earth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRail:\u003c\/strong\u003e MIL-STD-1913 Picatinny\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Flat Dark Earth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiver Material:\u003c\/strong\u003e Forged 7075-T6 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e MIL-SPEC AR-15 lower receivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNFA Notice:\u003c\/strong\u003e Attaching this upper to a rifle lower creates an SBR requiring ATF Form 1 or Form 4 approval\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Daniel Defense","offers":[{"title":"Default Title","offer_id":47944170176767,"sku":"DD2300408013011","price":1586.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/dd2300408013011595f.jpg?v=1766627557","url":"https:\/\/doublestackstore.com\/products\/upper-mk18-5-56mm-ris-ii-fde","provider":"Double Stack Store","version":"1.0","type":"link"}