The Armaspec QD Aluminum End Plate in flat dark earth (Armaspec part no. ARM6511-FDE) replaces a standard AR-15 castle-nut end plate with a version that adds a quick-detach sling swivel socket at the rear of the receiver. Machined from aluminum and finished in FDE to match a range of Cerakote-finished builds, it’s a simple upgrade for shooters who want a QD sling mount point without drilling or modifying the receiver extension. It installs in place of the factory end plate during a standard buffer tube assembly, making it an easy addition during a build or a quick swap on an existing rifle.

Key Specifications

• Adds a quick-detach (QD) sling swivel socket at the rear of the receiver.
• Machined from aluminum and finished in flat dark earth (FDE).
• Installs as a direct replacement for the standard AR-15 castle-nut end plate.
• Manufactured by Armaspec as part of its AR-15 buffer-system accessory lineup.
• Compatible with standard mil-spec buffer tube assemblies without requiring a different tube.

Frequently Asked Questions

Does installing this end plate require any special tools? It installs using standard buffer tube assembly tools, the same as a factory end plate.

What does the QD socket accept? It accepts standard quick-detach sling swivels.

Buy the Armaspec QD Aluminum End Plate (FDE)

Add a quick-detach sling mount to your build without modifying the receiver. Order it from our Armaspec lineup of AR buffer system parts, shipped fast from our Lubbock, Texas gun shop.