Description
The LBE Unlimited AR15 Castle Nut is a precision-machined, mil-spec replacement castle nut designed to securely retain the carbine buffer tube on AR-15 lower receivers. Manufactured from strong 4140 steel with a durable Mag Phosphate finish, it provides excellent corrosion resistance and reliable locking strength for your buffer tube assembly.
A direct drop-in replacement that works with all standard mil-spec or commercial carbine buffer tubes and receiver end plates.
Features
- Precision machined from 4140 steel for maximum strength
- Mag Phosphate finish for superior corrosion resistance and durability
- Standard mil-spec threading for secure buffer tube retention
- Compatible with all standard AR-15 carbine buffer tubes and end plates
- Ideal for new builds, repairs, or upgrades
- 100% Made in the USA
