{"product_id":"sons-of-liberty-gun-works-m4-l89-upper-receiver-group-14-5-5-56-huxwrx-u-m4l89-556-145-hux","title":"Sons of Liberty Gun Works M4-L89 Upper Receiver Group 14.5\" 5.56 HUXWRX U-M4L89-556-145-HUX","description":"Product Description\n\u003cp\u003eThe Sons of Liberty Gun Works M4-L89 Upper Receiver Group delivers the same battle-ready quality found in SOLGW's legendary rifles, now available as a standalone upper for AR-15 platform builds. Featuring a 14.5-inch 416 stainless steel Liberty Fighting Barrel chambered in 5.56 NATO (.223 Wylde) with a mid-length gas system and a 1:7 twist rate, this upper is engineered for precision and reliability. The barrel is topped with a pinned and welded HUXWRX Flash Hider, bringing the overall length to a legal 16 inches. The forged upper receiver pairs seamlessly with the 13.75-inch L89 handguard, which features 7-sided M-LOK slots for versatile accessory attachment. Every unit is test-fired before leaving the shop, ensuring it meets SOLGW's exacting performance standards. Note: Does not include a bolt carrier group or charging handle.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e14.5-inch 416 Stainless Steel Liberty Fighting Barrel in 5.56 NATO (.223 Wylde) with mid-length gas system and 1:7 twist rate for consistent accuracy\u003c\/li\u003e\n  \u003cli\u003ePinned and welded HUXWRX Flash Hider achieves a legal 16-inch overall barrel length while reducing muzzle signature\u003c\/li\u003e\n  \u003cli\u003e13.75-inch L89 rail with 7-sided M-LOK slots and integral QD sling attachment points on both sides of the barrel nut\u003c\/li\u003e\n  \u003cli\u003eDrivelock barrel nut system with anti-rotation tabs and internal dowel pin between upper and rail for solid lockup and minimal point-of-impact shift\u003c\/li\u003e\n  \u003cli\u003eForged upper receiver with matte black anodized finish; test-fired at the factory before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sons of Liberty Gun Works\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e U-M4L89-556-145-HUX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 657628673019\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO \/ .223 Wylde\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 14.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Barrel Length (with Pinned \u0026amp; Welded Device):\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e 416 Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Profile:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Twist Rate:\u003c\/strong\u003e 1:7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 1\/2x28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-Length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Device:\u003c\/strong\u003e HUXWRX Flash Hider (Pinned and Welded)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandguard Length:\u003c\/strong\u003e 13.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRail System:\u003c\/strong\u003e L89 7-Sided M-LOK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpper Receiver:\u003c\/strong\u003e Forged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Matte Black Anodized\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Platform:\u003c\/strong\u003e AR-15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBCG Included:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging Handle Included:\u003c\/strong\u003e No\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\n]]\u0026gt;","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":44199745912954,"sku":"FLX-SOLGWUM4L89556145HUX","price":1134.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/308990721.jpg?v=1788374439","url":"https:\/\/tlooutdoors.com\/products\/sons-of-liberty-gun-works-m4-l89-upper-receiver-group-14-5-5-56-huxwrx-u-m4l89-556-145-hux","provider":"TLO Outdoors","version":"1.0","type":"link"}