{"product_id":"solgw-m4-l89-urg-11-5-5-56-a2","title":"Sons of Liberty Gun Works - L89 11.5\" Upper Receiver with A2 Flash","description":"\u003cp\u003eThe \u003cb\u003eSons of Liberty Gun Works L89 Upper Receiver Group\u003c\/b\u003e is a high-quality assembly featuring a robust design built to the same standards as the company's legendary rifles. It includes a forged upper receiver paired with the \u003cb\u003eLiberty Fighting Barrel\u003c\/b\u003e and a SOLGW 4140 gas block with a nitrided gas tube. This upper receiver group is test-fired before leaving the shop to ensure reliability and performance.\u003c\/p\u003e\u003cp\u003eThe L89 features a 10.75-inch rail with 7-sided MLOK slots and integral QD mounts at the barrel nut on both the left and right sides. The Drivelock barrel nut system, anti-rotation tabs, and an internal dowel pin between the upper and rail ensure a solid lockup, minimizing point of impact shifts for attached lasers or other VAS systems.\u003c\/p\u003e\u003cp\u003eThis specific configuration includes an \u003cb\u003e11.5-inch 5.56mm barrel\u003c\/b\u003e with an \u003cb\u003eA2 flash hider\u003c\/b\u003e, providing excellent performance in a compact package. Please note that the Bolt Carrier Group and Charging Handle are not included but are available as optional add-ons.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Length:\u003c\/b\u003e 11.5 inches with 10.75-inch rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMuzzle Device:\u003c\/b\u003e A2 flash hider\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRail System:\u003c\/b\u003e 7-sided MLOK slots with integral QD mounts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Nut System:\u003c\/b\u003e Drivelock with anti-rotation tabs\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Block:\u003c\/b\u003e SOLGW 4140 with nitrided gas tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Designed for 5.56mm platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuality Assurance:\u003c\/b\u003e Test-fired before shipping\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSubCategory:\u003c\/b\u003e Upper Receivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e M4-L89 Upper Receiver Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturers Part Number:\u003c\/b\u003e U-M4L89-556-115-A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct UPC:\u003c\/b\u003e 657628672975\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Upper\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":43315771080793,"sku":"RSR-SOLGWUM4L89556115A2","price":1174.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/solgw_RSR-SOLGWUM4L89556115A2-1.jpg?v=1790640183","url":"https:\/\/mountainready.online\/products\/solgw-m4-l89-urg-11-5-5-56-a2","provider":"mountainready.online","version":"1.0","type":"link"}