Skip to main content
We may get paid by partner for deals, including promoted items

Menu

15% off

Price history at MidwayUSA

$11$10Oct 2026Nov 1, 2026

Recorded at MidwayUSA since Oct 9, 2026: low $9.65 (Oct 31, 2026), high $11.35 (Oct 9, 2026). Last checked Nov 1, 2026.

From the store's product feed and AvantLink's price records; feeds can lag the store's own site.

Product Description

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. The standard castle nuts only come in black. FeaturesMaterial: Aircraft Grade 7075-T6 AluminumWeight: 5.5gYou will need a standard stock wrench to installType III Hardcoat Anodize

Fortis Castle Nut AR-15/LR-308

$9.65 $11.35 15% Discount
You save $1.70
In Stock at MidwayUSA
Price verified today
Buy Now at MidwayUSA
Secure checkout Easy returns
or compare prices

Product Details

Category Receiver Parts
MPN CN-Stand

More from Fortis Manufacturing

MidwayUSA
Last Updated:
Nov 01, 2026 08:36 AM
MidwayUSA
Last Updated:
Nov 01, 2026 08:36 AM
MidwayUSA
Last Updated:
Nov 01, 2026 08:36 AM
MidwayUSA
Last Updated:
Nov 01, 2026 08:36 AM