{"product_id":"cobalt-kinetics-ck-pro-urg-13-7-5-56x45mm-nato-built-upper-receiver-fde-cerakote","title":"Cobalt Kinetics CK-Pro URG 13.7\" 5.56x45mm NATO Built Upper Receiver - FDE Cerakote","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eCobalt Kinetics CK-Pro URG\u003c\/span\u003e\u003c\/strong\u003e (Upper Receiver Group) is a complete, ready-to-install \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e5.56x45mm NATO\u003c\/span\u003e\u003c\/strong\u003e upper assembled around a \u003cstrong\u003e13.7\" barrel\u003c\/strong\u003e. Shipped in the Built configuration, the CK-Pro URG comes with the barrel, bolt carrier group, and charging handle installed, ready to mate with any mil-spec AR-15 lower receiver.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe upper receiver is precision machined from \u003cstrong\u003e7075 T6 billet aluminum\u003c\/strong\u003e and finished in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eFlat Dark Earth Cerakote\u003c\/span\u003e\u003c\/strong\u003e for corrosion resistance and the distinctive Cobalt Kinetics look. A \u003cstrong\u003e13\" M-LOK handguard\u003c\/strong\u003e is cut from 6061 aluminum in a semi-monolithic, 7-sided profile that frees up the top Picatinny rail for optics and back-up iron sights while keeping the platform rigid and lightweight.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003e416R stainless steel barrel\u003c\/strong\u003e with mid-length gas delivers smooth, reliable cycling and accuracy potential for duty, defense, or range use. Pair the CK-Pro URG with your preferred lower to assemble a custom rifle configured exactly to your needs.\u003c\/span\u003e\u003c\/p\u003e","brand":"Cobalt Kinetics","offers":[{"title":"Default Title","offer_id":55076767138114,"sku":"194787","price":1225.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_509b1325-d2c8-47a8-b6be-ad0d92512906.png?v=1784756528","url":"https:\/\/centerfiresystems.com\/products\/cobalt-kinetics-ck-pro-urg-13-7-5-56x45mm-nato-built-upper-receiver-fde-cerakote","provider":"Centerfire Systems","version":"1.0","type":"link"}