This steel combination armorer's wrench handles the core jobs on an AR-15 build or service. One tool covers the barrel nut, the castle nut on the receiver extension, and muzzle-device surfaces, with a 1/2" square drive so you can put a torque wrench on it. It's the wrench most AR work starts and ends with.
Features:
A fundamental tool for assembling, tightening, and maintaining AR-15 receivers and barrels. From 3CR Tactical.
