{"product_id":"rra-cmplt-car-a4-upr-458-socom-16","title":"Rra Cmplt Car A4 Upr 458 Socom 16","description":"Rock River Arms complete Tactical Carbine upper is an A4 upper chambered in .458 SOCOM with a 16\" chrome moly bull barrel and 1:14 twist. Additionally the upper comes with a complete bolt carrier group, charging handle assembly, 15\" RRA lightweight M-Lok compatible free float rail and a RRA Operator brake with a a 5\/8-32 thread pitch.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e :\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e.458 Socom Chamber\u003c\/li\u003e\n\u003cli\u003e16-Inch Chrome Moly Bull Barrel, 1:14 Twist\u003c\/li\u003e\n\u003cli\u003eRRA Operator Brake \/ 5\/8–32 Thread\u003c\/li\u003e\n\u003cli\u003eLow Profile Gas Block\u003c\/li\u003e\n\u003cli\u003eRRA Lightweight Free Float Rail, 15 Inch Extended\u003c\/li\u003e\n\u003cli\u003eBolt Carrier Group And Charging Handle Assembly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rock River Arms","offers":[{"title":"Default Title","offer_id":44908032819419,"sku":"RRASOC0564","price":700.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/files\/RPLRRASOC0564.jpg?v=1727453084","url":"https:\/\/www.atcostammo.com\/products\/rra-cmplt-car-a4-upr-458-socom-16","provider":"AtCostAmmo.com","version":"1.0","type":"link"}