LBE Unlimited Castle Nut 4140 Steel Black Phosphate – This Week Only
Original price was: $5.49.$2.85Current price is: $2.85.
Specifications
Weight—-0.8 ounces
Material—-4140 steel
WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV
Product Overview
The LBE Unlimited AR-15 Castle Nut is made from 4140 steel and finished with a black phosphate coating for improved durability and corrosion resistance. This castle nut is designed to help secure the receiver extension assembly on compatible AR-15 builds.
Key Features
- Black phosphate coating for corrosion resistance
- Built from 4140 steel for strength and reliable fit
- Designed for AR-15 receiver extension/castle nut applications
Upgrade or replace your AR-15 castle nut with a purpose-built 4140 steel component from LBE Unlimited.





