{"product_id":"spikes-stu5025r9s-m4-5-56x45mm-nato-16-complete-upper-9-bar2-quad-rail","title":"Spikes STU5025R9S M4 5.56x45mm NATO 16\" Complete Upper - 9\" BAR2 Quad Rail","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSpikes STU5025R9S Complete Upper\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eNew\u003c\/span\u003e\u003c\/strong\u003e complete replacement upper for an \u003cstrong\u003eM4 carbine\u003c\/strong\u003e, chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e5.56x45mm NATO\u003c\/span\u003e\u003c\/strong\u003e. It pairs a \u003cstrong\u003e16\" chrome moly barrel\u003c\/strong\u003e with a \u003cstrong\u003e9\" BAR2 free-float quad rail handguard\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel features a \u003cstrong\u003eblack phosphate finish\u003c\/strong\u003e and a \u003cstrong\u003e1:7\u003c\/strong\u003e twist rate. Its \u003cstrong\u003e7075-T6 aluminum receiver\u003c\/strong\u003e has a \u003cstrong\u003eblack finish\u003c\/strong\u003e, and the handguard is also finished in \u003cstrong\u003eblack\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis complete upper is supplied with \u003cstrong\u003eno sights\u003c\/strong\u003e and is \u003cstrong\u003eoptic ready\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Spikes","offers":[{"title":"Default Title","offer_id":54988981797186,"sku":"99732","price":703.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_9c04cb98-18a2-4611-9290-e52ddacd58aa.png?v=1784147046","url":"https:\/\/centerfiresystems.com\/products\/spikes-stu5025r9s-m4-5-56x45mm-nato-16-complete-upper-9-bar2-quad-rail","provider":"Centerfire Systems","version":"1.0","type":"link"}