LBE AR CASTLE NUT

The LBE AR CASTLE NUT by LBE Unlimited is a precision-engineered component designed to securely fasten the buffer tube to the receiver extension on AR-style rifles. Crafted from durable 4140 steel, this castle nut offers excellent strength and reliability under demanding conditions. Its manganese phosphate finish provides enhanced corrosion resistance and a matte appearance that minimizes glare.

Manufactured in the USA, the LBE AR CASTLE NUT meets high standards for quality and consistency. This component is essential for maintaining proper assembly and function of the firearm’s buffer system, ensuring stability during operation. The robust construction and reliable finish make it a trusted choice for builders and enthusiasts seeking dependable parts for their AR platforms.