The Armaspec enhanced buffer tube kit includes all essential components for mounting a stock assembly onto a lower receiver. This kit features a Mil-Spec 7075-T6 6-position buffer tube, along with a durable steel castle nut and end plate. Additionally, it includes the SRS GEN4, an enhanced multi-stage recoil buffer system. The Stealth Recoil Spring SRS GEN4 is a self-contained drop-in replacement for standard buffers and springs. It prevents the buffer spring from rubbing against the buffer tube's inner wall, ensuring smooth and quiet operation. Its multi-stage design helps significantly reduce felt recoil, enhancing shooting comfort and control.