{"product_id":"fn-ar-15-18in-cold-hammer-forged-chrome-lined-barrel-rifle-length-gas-system-36423","title":"FN AR-15 18in Cold Hammer Forged Chrome-Lined Barrel, Rifle-Length Gas System, 36423","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe FN AR-15 barrel (MPN 36423) is a cold hammer forged, chrome-lined 18 inch barrel built from FN's proprietary Chrome Moly Vanadium steel for durability and consistent performance. Each barrel is magnetic particle tested for quality assurance, with a chrome-lined chamber and bore designed to resist corrosion and heat erosion for extended barrel life. M4-style feed ramps and the barrel extension promote reliable feeding, while a matte black manganese phosphate finish helps protect against external corrosion and oxidation. Designed for a rifle-length gas system and chambered in 5.56x45mm NATO, this barrel is a strong choice for AR-15 builds prioritizing longevity and reliability.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCold hammer forged (CHF) Chrome Moly Vanadium (CMV) steel construction for long-lasting durability\u003c\/li\u003e\n  \u003cli\u003eChrome-lined bore and chamber to improve corrosion resistance and reduce heat erosion\u003c\/li\u003e\n  \u003cli\u003eMagnetic particle tested for added quality control and consistency\u003c\/li\u003e\n  \u003cli\u003eM4-style feed ramps and barrel extension for dependable feeding\u003c\/li\u003e\n  \u003cli\u003eMatte black manganese phosphate finish to resist external corrosion and oxidation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: FN\u003c\/li\u003e\n  \u003cli\u003eManufacturer Part Number: 36423\u003c\/li\u003e\n  \u003cli\u003eUPC: 845737005146\u003c\/li\u003e\n  \u003cli\u003ePlatform: AR-15\u003c\/li\u003e\n  \u003cli\u003eCaliber: 5.56x45mm NATO\u003c\/li\u003e\n  \u003cli\u003eBarrel Length: 18 in\u003c\/li\u003e\n  \u003cli\u003eGas System Length: Rifle length\u003c\/li\u003e\n  \u003cli\u003eMaterial: Chrome Moly Vanadium (CMV) steel, cold hammer forged\u003c\/li\u003e\n  \u003cli\u003eBore\/Chamber: Chrome lined\u003c\/li\u003e\n  \u003cli\u003eFinish: Manganese phosphate (black phosphate)\u003c\/li\u003e\n  \u003cli\u003eFeed Ramps: M4 style\u003c\/li\u003e\n  \u003cli\u003eTwist Rate: 1:7 RH\u003c\/li\u003e\n  \u003cli\u003eMuzzle Threads: 1\/2 x 28\u003c\/li\u003e\n  \u003cli\u003eGas Block Diameter: 0.750 in\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":"FN","offers":[{"title":"Default Title","offer_id":44098965340282,"sku":"FLX-154343","price":337.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/292862311.png?v=1771249144","url":"https:\/\/tlooutdoors.com\/products\/fn-ar-15-18in-cold-hammer-forged-chrome-lined-barrel-rifle-length-gas-system-36423","provider":"TLO Outdoors","version":"1.0","type":"link"}