{"product_id":"rock-river-arms-ar-15-complete-upper-350-legend-16in-stainless-barrel-m-lok-rail-350l0326","title":"Rock River Arms AR-15 Complete Upper .350 Legend 16in Stainless Barrel M-LOK Rail 350L0326","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Rock River Arms .350 Legend complete upper receiver assembly is built for dependable performance and easy caliber changes on AR-15 platforms. It features a forged A4 upper receiver paired with a 16 inch stainless steel barrel that is cryogenically treated and cut with a 1:16 twist for consistent accuracy. A carbine-length gas system with a low-profile gas block helps deliver reliable cycling, while the RRA 13 inch extended lightweight free float rail provides a rigid, accessory-ready platform with M-LOK compatibility. Finished with an RRA Operator Brake on 1\/2-36 threads, this upper includes the bolt carrier group, charging handle assembly, and one 10-round magazine so you can get up and running quickly.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eChambered in .350 Legend with a 16 inch stainless steel, cryogenically treated barrel for durability and performance\u003c\/li\u003e\n  \u003cli\u003eForged A4 flat-top upper receiver for a strong, optics-ready build\u003c\/li\u003e\n  \u003cli\u003eCarbine-length gas system with low-profile gas block for smooth, reliable operation\u003c\/li\u003e\n  \u003cli\u003eRRA 13 inch extended lightweight free float rail with M-LOK compatibility for accessory mounting\u003c\/li\u003e\n  \u003cli\u003eIncludes bolt carrier group, charging handle assembly, and one 10-round magazine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rock River Arms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 350L0326\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 842834124572\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .350 Legend\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpper Receiver:\u003c\/strong\u003e Forged A4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Treatment:\u003c\/strong\u003e Cryogenically treated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Carbine length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block:\u003c\/strong\u003e Low profile\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e RRA 13 inch extended lightweight free float rail, M-LOK compatible\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Device:\u003c\/strong\u003e RRA Operator Brake\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 1\/2-36\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Bolt carrier group, charging handle assembly, (1) 10-round magazine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rock River Arms","offers":[{"title":"Default Title","offer_id":44098994339962,"sku":"FLX-157966","price":683.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/292862293.png?v=1771252499","url":"https:\/\/tlooutdoors.com\/products\/rock-river-arms-ar-15-complete-upper-350-legend-16in-stainless-barrel-m-lok-rail-350l0326","provider":"TLO Outdoors","version":"1.0","type":"link"}