{"product_id":"fortis-manufacturing-lightweight-enhanced-k1-ar-15-castle-nut-end-plate-kit-fde-le-blk-k1-fde","title":"Fortis Manufacturing Lightweight Enhanced K1 AR-15 Castle Nut \u0026 End Plate Kit FDE LE-BLK-K1-FDE","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Fortis Lightweight Enhanced (LE) K1 Castle Nut \u0026amp; End Plate System is engineered to help prevent your AR-15 castle nut from backing out while eliminating the need for staking. The K1 system uses a tapered castle nut designed to seat and seal to the end plate for a precision, ultra-snug fitno ratcheting mechanism, no set screws, and no added failure points. Built from 7075-T6 aircraft-grade aluminum and featuring a 360 rotational Quick Detach (QD) sling socket interface, this setup delivers strength, streamlined installation, and very low weight for performance-focused builds.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eK1 tapered castle nut design helps lock in place without staking for a clean, professional AR-15 build\u003c\/li\u003e\n  \u003cli\u003e7075-T6 aircraft-grade aluminum construction balances durability and lightweight performance\u003c\/li\u003e\n  \u003cli\u003eIntegrated 360 rotational QD sling socket for flexible sling attachment positioning\u003c\/li\u003e\n  \u003cli\u003eNo set screws and no ratcheting system to simplify installation and reduce failure points\u003c\/li\u003e\n  \u003cli\u003eMade in the USA; ultra-lightweight design at approximately 16.8 g (0.59 oz)\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 Fortis Manufacturing, Inc.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e LE-BLK-K1-FDE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 850015927270\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatform Compatibility:\u003c\/strong\u003e AR-15 (fits standard carbine-style buffer tubes)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem\/Lockdown Type:\u003c\/strong\u003e K1 (tapered castle nut interface)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 7075-T6 aircraft-grade aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQD Socket:\u003c\/strong\u003e 360 rotational locking interface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 16.8 g (0.59 oz) (approx.)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA\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 products manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fortis Manufacturing, Inc.","offers":[{"title":"Default Title","offer_id":44076986531962,"sku":"FLX-FORTLE-BLK-K1-FDE","price":44.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283688478.jpg?v=1767588371","url":"https:\/\/tlooutdoors.com\/products\/fortis-manufacturing-lightweight-enhanced-k1-ar-15-castle-nut-end-plate-kit-fde-le-blk-k1-fde","provider":"TLO Outdoors","version":"1.0","type":"link"}