Fortis Enhanced AR-15 End Plate System - K2 - FDE Castle Nut - Locking Lever

Manufactured by Fortis Manufacturing
Manufactured by Fortis Manufacturing
2 Reviews

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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When designing the new Fortis Lightweight Enhanced lock nut and endplate system, the goal was to keep weight light and eliminate the use of complicated tools, wrenches, and ratchets. The K2 system uses a locking lever mechanism that seats itself through a slot on the bottom of the endplate and into cutouts on the castle nut. This ultra-precise fit allows the lock nut to be in place and locked in without staking the endplate. There is no ratchet, no set screws, and the K2 castle nut won't back out.

Color: FDE
Style: K2 - Locking Lever
Weighs only .53 oz / 15 grams total
Machined from 7075 T6 Aircraft Grade Aluminum
Quick Detach Socket - 360º rotational locking interface
No set screws or ratcheting system
Made in the USA

Fortis Manufacturing, Inc. is passionate about creating the best AR-15/M16 parts and accessories, using only the highest quality materials available and unrivaled machining. This ensures that every Fortis product meets or exceeds your demands.
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BrandFortis Manufacturing
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

2 reviews

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by -

Great bit of kit! Makes changing buffer tubes much easier while knowing that things aren't going to come loose because I didn't stake the castle nut.
<br>Will be buying another on once that color is back in stock!


by -

This thing took this long to exist???? Holy christ it's like baby Jesus but for castle nuts.