Forward Controls Design

Overview

The Forward Controls Design 4140 Billet Castle Nut is crafted from durable 4140 steel and features a black nitride finish, providing both strength and corrosion resistance. This castle nut secures the buffer tube assembly to the receiver, ensuring a stable connection that is critical for reliable operation of your AR-15. Builders often choose this component for their mil-spec or tactical builds where durability and resilience against wear are essential.