Magpul AR-15/M4 Armorer's Wrench

Magpul's armorer's wrench covers most of an AR-15 or M4 build in one piece of phosphate finished steel. It engages both stock and pin style barrel nuts, fits standard sized flash hiders, and installs or removes rifle receiver extensions and carbine castle nuts. Extended teeth clear ASAP plates.

Two hammer faces mean you can leave the armorer's hammer in the drawer. It works with a 1/2" torque wrench, and the relevant torque specs are printed right on the tool. There is also a bottle opener for when the build is done.