Fortis Manufacturing Lightweight Enhanced K1 AR-15 Castle Nut & End Plate Kit FDE LE-BLK-K1-FDE

SKU: FLX-FORTLE-BLK-K1-FDE

Regular price $44.98
Sale price $44.98 Regular price
Sale Sold out
Unit price
/per 
FREE GROUND SHIPPING on orders $50+
Additional or Expedited Shipping calculated at checkout.
This is a pre order item. We will ship it when it comes in stock.

Fast Shipping

American Owned

Easy Returns

Product Description

The Fortis Lightweight Enhanced (LE) K1 Castle Nut & 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.

Product Highlights

  • K1 tapered castle nut design helps lock in place without staking for a clean, professional AR-15 build
  • 7075-T6 aircraft-grade aluminum construction balances durability and lightweight performance
  • Integrated 360 rotational QD sling socket for flexible sling attachment positioning
  • No set screws and no ratcheting system to simplify installation and reduce failure points
  • Made in the USA; ultra-lightweight design at approximately 16.8 g (0.59 oz)

Specs

  • Brand: Fortis Manufacturing, Inc.
  • Manufacturer Part Number: LE-BLK-K1-FDE
  • UPC: 850015927270
  • Platform Compatibility: AR-15 (fits standard carbine-style buffer tubes)
  • System/Lockdown Type: K1 (tapered castle nut interface)
  • Material: 7075-T6 aircraft-grade aluminum
  • QD Socket: 360 rotational locking interface
  • Weight: 16.8 g (0.59 oz) (approx.)
  • Country of Manufacture: USA

Disclaimer: 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.

The TLO Promise:

Customer Satisfaction Guaranteed

Fast Shipping

Most orders placed before 12 Noon (EST) ship same day and FREE SHIPPING on orders $50+

Easy Returns

No-Hassle Returns for 30 days from your purchase date.

Customer Service

TLO is a family-owned, American small business in GA. We treat you right.

Google Example // <- put this code in head section