The T-Series handguards from Midwest Industries are one piece free floating handguards designed for optimum performance. Made from 6061 aluminum these handguards are sure to hold up and provide long term dependability. Everything needed for installation is included: Barrel Nut, Barrel Nut Wrench, Torque Plate, and Hex Keys. Feature: 4140 heat treated barrel nut Features patented 4140 heat treated torque plate High quality MIL-STD 1913 picatinny rails, T-marked for accessory location Provides continuous monolithic look with full length upper rail Two integral anti-rotation QD sling sockets 2.15 inches wide x 2.43 inches tall Fully dehorned and deburred 100% made in USA keeps America working MI lifetime warranty