13.7" Ultra Lite MLOK Hand Guard (Includes Barrel Nut & Hardware). Made of 6061-T6 aluminum and anodized black per mil-spec MIL-A-8625F, TYPE III, CLASS 2.
Hand guard weighs 9.1 ounces. Barrel nut and hardware weigh 1.3 ounces.
** Use Barrel Nut Wrench Tool - 1-3/16 for installation **
Installation: barrel nut torque range 35-40 ft/lbs. Screws range from 30-35 inch/lbs