Sons of Liberty Gun Works Castle Nut, Black

Crafted from high-strength steel, this mil-spec castle nut is engineered for exceptional durability and sustained performance, even under rigorous conditions. Its precision machining to exact specifications guarantees a secure fit and optimal engagement with the receiver end plate, ensuring reliable operation. Designed as a drop-in replacement, it seamlessly integrates with all mil-spec AR-15 buffer tubes and lower receivers, facilitating a quick and secure installation process. Whether you're b