FORTIS STANDARD CASTLE NUT
$9.61
The Fortis Standard Castle Nut is a must-have for any AR-15 enthusiast, engineered for a secure and reliable attachment of your buffer tube. Crafted by Fortis Manufacturing, Inc., this durable component enhances your firearm’s performance and ensures stability during use. Count on the exceptional quality that Fortis is known for in the shooting community.
Out of stock
Fortis Manufacturing, Inc. Castle Nut, Black, Anodized Finish, Mil Spec CN-Stand
| Weight | 0.063 lbs |
|---|---|
| Dimensions | 2.250 × 2.250 × 0.500 in |
| Manufacturer | Fortis Manufacturing, Inc. |
| Finish | Anodized |
| Material | Mil Spec |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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