Fortis Castle Nut and End Plate, Black, Anodized Finish QD

Fortis Manufacturing Fortis Castle Nut and End Plate, Black, Anodized Finish QD - Castle Nut - view 1
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Fortis Manufacturing

Overview

The Fortis Castle Nut and End Plate is designed to provide a secure attachment point for your AR-15's buffer tube, featuring a quick disconnect (QD) design that allows for easy sling attachment and detachment. The hardcoat anodized black finish not only enhances durability but also offers a sleek, tactical appearance. This component is commonly found in builds chambered for 300 Blackout, where reliability and quick adaptability are essential.

Specifications

MPNQDENDCNCOMBO
TypeQD
ColorBlack
FinishHardcoat Anodized

Available Merchants(2)

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Optics Planet logo
Optics Planet
Free shipping over $49
Shipping Speed
Out of Stock
$21
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
Out of Stock
$32

Build history on GunPartPicker

Builders on GunPartPicker first added the Fortis Castle Nut and End Plate, Black, Anodized Finish QD to a build in March 2026.

Today none of the 2 retailers we track has it in stock right now. Listed prices start at $20.99 at Optics Planet for when it comes back.

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Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

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