{"product_id":"fn-usa-fn-15-m16a4-mil-collector-complete-upper-receiver-assembly-20-quot-5-56x45mm","title":"FN USA FN 15 Military Collector Series M16A4 Complete Upper Receiver Assembly 5.56mm 20\" Barrel","description":"\u003cp\u003eOwn a piece of firearm history from the makers of the world’s most battle-proven firearms. The FN 15® Military Collector Series M16 upper receiver assembly is an authentic reproduction of the original made to FN’s and the U.S. military’s exacting specifications.  A 20-inch 1:7 RH button-broached barrel is chrome-lined and chambered in 5.56x45mm NATO. The upper is furnished with a complete M16-style MIL-SPEC bolt carrier group including a HPT\/MPI-tested bolt made from Carpenter 158 steel. A Knight’s Armament M5RAS quad-rail and adapter covers finish off the authentic reproduction making a perfect match for any M16-style build.\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\n\u003cstrong\u003eCALIBER:\u003c\/strong\u003e 5.56x45mm\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eWEIGHT:\u003c\/strong\u003e 5.61 Lbs.\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eBARREL LENGTH:\u003c\/strong\u003e 20\"\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eOPERATION:\u003c\/strong\u003e DIRECT IMPINGEMENT RIFLE LENGTH GAS SYSTEM\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eTWIST RATE:\u003c\/strong\u003e 1:7 RH\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eSIGHTS:\u003c\/strong\u003e A2-style front adjustable rear sight\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003eUppers\u003cbr\u003e36320-06","brand":"FN USA","offers":[{"title":"Retail","offer_id":45117404217481,"sku":"RJ3632006","price":1562.98,"currency_code":"USD","in_stock":false},{"title":"Member","offer_id":45117404348553,"sku":"RJ3632006","price":1447.81,"currency_code":"USD","in_stock":false},{"title":"Premium Member","offer_id":45117404381321,"sku":"RJ3632006","price":1382.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/2813\/4793\/files\/RJ3632006.jpg?v=1767380177","url":"https:\/\/christianvigilant.com\/products\/fn-usa-fn-15-m16a4-mil-collector-complete-upper-receiver-assembly-20-quot-5-56x45mm","provider":"Christian Vigilant","version":"1.0","type":"link"}