Strike Industries Ultralight QD Multi-Function End Plate & Anti-Rotation Castle Nut - FDE

The Strike Industries Ultralight Multi-Function End Plate and Anti-Rotation Castle Nut is a matched set of AR-platform lower-receiver hardware machined from 7075-T6 aluminum for a lighter carry than typical steel hardware. The pair replaces the factory end plate and castle nut with a more functional, upgrade-ready assembly that adds sling and quick-detach capability out of the box.

The Multi-Function End Plate is reversible, letting the shooter orient the integrated sling-loop hook attachments to either side of the receiver, and it carries a built-in QD socket for direct push-button quick-detach sling attachment without a separate mount. The matched Anti-Rotation Castle Nut is designed to keep the castle nut from backing loose under recoil and vibration. Both pieces wear a low-glare anodized Flat Dark Earth finish to coordinate with FDE rifles and components.

This set is a direct fit on standard AR-15 and AR-10 lower receivers and is well suited to range builds, competition carbines, and everyday-carry upgrades. The package includes the end plate and anti-rotation castle nut.