{"product_id":"lbe-unlimited-ar-15-ready-build-upper-kit-w-13-7in-cold-hammer-forged-barrel-ar137rbk","title":"LBE Unlimited AR-15 Ready Build Upper Kit w\/ 13.7in Cold Hammer Forged Barrel, AR137RBK","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe LBE Unlimited Ready Build Kit (AR137RBK) is a compact AR-15 upper build kit designed for shooters who want a durable, performance-focused foundation for a custom build. Centered around a premium 13.7-inch cold hammer forged (CHF) barrel, this kit is engineered for reliability and hard use while keeping overall length ideal for close-quarters and maneuverable setups. The kit includes key upper components such as the upper receiver, barrel assembly, and the gas system parts needed to complete the upper, making it an excellent choice for an AR pistol or short-barreled rifle (SBR) project.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium 13.7-inch cold hammer forged barrel for long service life and consistent performance\u003c\/li\u003e\n  \u003cli\u003eReady-build AR-15 upper kit format provides a strong starting point for a custom upper assembly\u003c\/li\u003e\n  \u003cli\u003eIncludes upper receiver and essential gas system components (gas block and gas tube)\u003c\/li\u003e\n  \u003cli\u003eConfigured for popular .223 Remington \/ 5.56 NATO chambering (per supplier listing)\u003c\/li\u003e\n  \u003cli\u003eBlack finish for a clean, duty-ready look and easy pairing with most AR builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e LBE Unlimited\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Ready Build Kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e AR137RBK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 706612408141\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatform Fit:\u003c\/strong\u003e AR-15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 13.7 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Type:\u003c\/strong\u003e Cold Hammer-Forged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56x45mm NATO \/ .223 Remington (as listed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Melonite (as listed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApprox. Weight:\u003c\/strong\u003e 3.44 lb (as listed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApprox. Package Dimensions:\u003c\/strong\u003e 18.5 in (L) x 3.5 in (W) x 3.5 in (H) (as listed)\u003c\/li\u003e\n\u003c\/ul\u003e\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 products manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"LBE UNLIMITED","offers":[{"title":"Default Title","offer_id":44077245792378,"sku":"FLX-175878","price":556.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283964896.png?v=1767655261","url":"https:\/\/tlooutdoors.com\/products\/lbe-unlimited-ar-15-ready-build-upper-kit-w-13-7in-cold-hammer-forged-barrel-ar137rbk","provider":"TLO Outdoors","version":"1.0","type":"link"}