Timber Creek Outdoors TCCN Castle Nut AR-15 Steel Black

The Timber Creek Outdoors TCCN Castle Nut is a Mil-Spec steel castle nut designed to secure a carbine buffer tube to the lower receiver on the AR-15 platform. Manufactured by Timber Creek Outdoors, this castle nut is made from durable steel and finished in a protective black coating for long-lasting corrosion resistance.

As a direct-fit component for AR-15 carbine receiver extensions, the TCCN threads onto the buffer tube to lock the assembly solidly to the lower receiver, making it a clean drop-in replacement or upgrade for any build or maintenance job. The black finish matches standard Mil-Spec components throughout the platform. Proudly made in the USA, this Timber Creek Outdoors castle nut is built to the quality standards expected of duty-grade AR-15 components.