The Advanced Armorer's Wrench is designed to ergonomically increase efficiency! With its enhanced features from the center designed Barrel Nut Wrench with opposing grips to the Enhanced Castle Nut Wrench, you'll get the job done better than ever before. Built to last from 8620 Steel, Heat Treated and Plated. Brought to you by Rainier Arms and developed by Devil Dog Concepts and American Resistance Gear. FeaturesCentered Barrel Nut WrenchOpposing Curved GripsEnhanced Castle Nut Wrench1/2" Drive Slots for Torque WrenchTakedown Pin PressEnhanced Flash Hider WrenchA2 Buffer Tube WrenchFlat Blade Screwdriver for the A2 Buffer ScrewBuilt in HammerHanger Holeand a Bottle Opener