Real Avid has a deep understanding of what it takes to build or trick-out a quality AR-15. That's why they weren't satisfied with the cheap, poorly designed tools on the market and created the Armorer's Master Wrench. Beautifully ergonomic to give you the serious torque needed to remove stubborn, crusted-on barrel or castle nuts without marring your firearm or stripping the nuts. Same goes for your flash suppressor. Repeated high-temp heating/cooling cycles cause the threads to become nearly welded. It takes a lot of hand-numbing torque to break them free. This tool is hardened to twice that of many of its competitors to hold shape under pressure and has deep set sockets to grip your nuts and keep 'em gripped. And when it comes to assembly, think precision. Barrel nuts, castle nuts, muzzle brakes, flash suppressors, and fixed stock receiver extensions have critical torque adjustment specs. The proximity of the torque wrench attachment point to all of the wrenches delivers the most a...