{"product_id":"solgw-m4-l89-urg-14-5-5-56-p-w-pln-b","title":"Sons of Liberty Gun Works - L89 5.56 Upper Receiver 14.5\" with Rail","description":"\u003cp\u003eThe \u003cb\u003eSons of Liberty Gun Works L89 Upper Receiver Group\u003c\/b\u003e is a high-quality component designed for serious shooters. Built with the same standards as their renowned rifles, this upper receiver features a forged construction and includes the \u003cb\u003eLiberty Fighting Barrels\u003c\/b\u003e with a SOLGW 4140 gas block and nitrided gas tube. Each unit is test fired to ensure reliability and performance.\u003c\/p\u003e\u003cp\u003eThe L89 Upper Receiver is equipped with a \u003cb\u003e13.75\" rail\u003c\/b\u003e that includes 7-sided MLOK slots and integral QD mounts at the barrel nut on both sides, providing versatile attachment options. The \u003cb\u003eDrivelock barrel nut system\u003c\/b\u003e, anti-rotation tabs, and an internal dowel pin between the upper and rail ensure a solid lockup, minimizing point-of-impact shifts when using laser or other VAS systems.\u003c\/p\u003e\u003cp\u003eThis specific model features a \u003cb\u003e14.5\" barrel\u003c\/b\u003e with a pinned and welded \u003cb\u003ePlan B flash hider\u003c\/b\u003e, making it compliant with various regulations. Note that the bolt carrier group (BCG) and charging handle (CH) are not included but can be added as options.\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 14.5\" with 13.75\" rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMuzzle Device:\u003c\/b\u003e Plan B FH P\u0026amp;W\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Block:\u003c\/b\u003e SOLGW 4140\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Tube:\u003c\/b\u003e Nitrided\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\u003eLockup System:\u003c\/b\u003e Drivelock barrel nut, anti-rotation tabs, and internal dowel pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTest Fired:\u003c\/b\u003e Yes, for reliability and performance assurance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e M4-L89 Upper Receiver Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Upper\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSubCategory:\u003c\/b\u003e Complete Upper Receivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturers Part Number:\u003c\/b\u003e U-M4L89-556-145-PB\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct UPC:\u003c\/b\u003e 657628673033\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":43409073209433,"sku":"RSR-SOLGWUM4L89556145PB","price":1297.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/solgw_RSR-SOLGWUM4L89556145PB-1.jpg?v=1790640007","url":"https:\/\/mountainready.online\/products\/solgw-m4-l89-urg-14-5-5-56-p-w-pln-b","provider":"mountainready.online","version":"1.0","type":"link"}