The Fortis K2 System (Locking Lever) Castle Nut - LE Lightweight Enhanced AR15 End Plate is an innovative, lightweight castle nut and end plate system that securely locks the castle nut in place without traditional staking. The K2 mechanism uses a unique locking lever that aligns and slots into the end plate, engaging specific notches on the castle nut for a precise, reusable connection that eliminates common points of failure. Both the castle nut and end plate are machined from 7075-T6 aircraft-grade aluminum, and the end plate features a quick-detach socket with a 360-degree rotational locking interface. Total weight is only 0.53 oz (15 grams). Available in Black, Flat Dark Earth, Grey, and OD Green.
Features
- K2 System (Locking Lever) Lightweight Enhanced Castle Nut and End Plate for AR-15
- Unique locking lever engages notches on the castle nut for a secure, reusable lockup
- No staking, set screws, or non-reusable ratcheting systems required
- Castle nut and end plate machined from 7075-T6 aircraft-grade aluminum
- Quick-detach socket with 360-degree rotational locking interface
- Ultra-lightweight at only 0.53 oz / 15 grams total
- Available in Black, Flat Dark Earth, Grey, and OD Green
- Made in the USA
