Skip to main content
We ship to addresses within the United States only.

Fortis

Fortis Castle Nut, Mil Spec, Black

MSRP: $11.95
$11.35
You save $0.60
Bundle & Save: buy 2 items save 5%, 3 items save 10%, 4 or more save 15%. Applied automatically in your cart.
New customer? Use code WELCOME10 at checkout for 10% off your first order.
One offer per order, discounts can't be combined.
Adding to cart… The item has been added
  • Authorized dealer
  • 30-day returns
  • US shipping

Questions about fit or mounting? Call +1 570-262-5566

Key specifications

Finish
Anodized
Type
End Plate
Full specifications and details

Delivery & returns

  • Ships within the United States only.
  • Orders typically processed within 3–5 business days.
  • Unused items can be returned within 30 days of delivery.

Product details

SKU:
CN-Stand
UPC:
810103343054

The Fortis Castle Nut, Mil Spec, Black is a end plate.

The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces, this is a great way, but without sacrificing durability. The castle nut will fit onto mil-spec buffer tubes and quickly upgrade the form and function of your build.

How It Compares

Also compare the Lightweight Enhanced AR15 End Plate, K1 System (Tapered) Castle Nut, K1 Enhanced End Plate Castle Nut Combo for AR-15 and K2 Enhanced End Plate Castle Nut Combo for AR-15. Browse all AR-15 Parts and the full Fortis range.

Key Features

  • Material: Aircraft Grade 7075-T6 Aluminum
  • Weight: 0.2 oz!
  • You will need a standard stock wrench to install
  • Type III Hardcoat Anodize
  • Made in the USA!
  • Anodized Finish
  • Mil Spec

Compatibility & Fitment

Check the platform named in the title to confirm fit before ordering. Not sure it fits? Contact us before you order and we will check for you.

Technical Specifications

Brand

Fortis

Type

End Plate

Finish

Anodized

Color

Black

MPN

CN-Stand

UPC

810103343054

US Shipping & Support

Genuine Fortis, brand new and covered by the manufacturer's warranty. Shipping is free on US orders of $99 or more, and smaller orders ship from $6.95. Questions about fit, mounting or which option suits your setup? Our team is glad to help before and after your purchase.

Frequently Asked Questions

Is this a genuine Fortis product?
Yes. It is a new, genuine Fortis product sourced through an authorized US distributor.

How much is shipping?
Shipping is free on US orders of $99 or more. Orders under $99 ship at a flat rate from $6.95 to $9.95, depending on the order total.