Enhance your firearm's performance with the Blackhawk Knoxx 223/5.56 Rifle Six Position Stock and Buffer Tube Kit. This Mil-Spec kit is engineered for durability and reliability, providing a solid foundation for your AR-15 setup. Constructed from robust 6061 T6 aluminum, this buffer tube kit includes essential components to improve your weapon's functionality in various environments. Its weather-resistant properties ensure longevity in the field. AR-15 M4 Blackhawk Knoxx Collapsible Mil-Spec Stock AR-15 Buffer Castle Nut Stock Buffer End Plate AR-15 Carbine Length Buffer Spring - Steel AR-15 Collapsible Stock Buffer - 3.0 OZ-Carbine Length (BLACK) Made in the U.S. Upgrade your tactical arsenal with this comprehensive stock and buffer tube kit designed to maximize precision and control.