MIDWEST ARMORERS WRENCH AR15/M4.

Midwest Industries Armorer's Wrench, Fits AR-15 Rifles, Bottle Opener, 3/4" Wrench For A2 Muzzle Devices, Castle Nut Driver With 3 Notch Engagement, Small Hammer Head, Torque Specs Features On Wrench Handle, Constructed From 4140 Heat Treated Steel, Black Finish MI-ARAW.