Daniel Defense Castle Nut Black
Heavy-duty castle nut with magnesium phosphate finish secures receiver extension and end plate. Features staking recesses and works with standard armorer wrenches.
Secure Your Carbine Assembly
The Daniel Defense Castle Nut is a critical component for properly securing your AR-platform carbine's receiver extension and rear receiver end plate to the lower receiver.
Key Features
- Staking Recesses: Designed with recesses that allow you to stake your rear receiver end plate, preventing the castle nut from loosening during use
- Heavy Magnesium Phosphate Finish: Durable coating resists corrosion and wear
- Universal Compatibility: Works with both mil-spec and commercial-spec receiver extensions
- Standard Tooling: Compatible with common armorer's castle nut wrenches (wrench sold separately)
- Lightweight: Minimal weight addition at just 0.5 ounces
Why It Matters
A properly secured castle nut is essential for safe carbine operation. The staking recesses on this nut allow you to permanently lock the end plate in place, eliminating any possibility of the assembly loosening during firing. This is a straightforward upgrade that enhances the reliability and safety of your rifle.
Whether you're building a new carbine or maintaining an existing one, the Daniel Defense Castle Nut delivers the quality and functionality you expect from a trusted manufacturer.
