Armorer's Wrench for AR-15 Multi-Function Tool by AT3(TM)

This perfect tool for AR builds that allows installation & removal of barrel nuts, muzzle devices, rifle buffer tubes, and castle nuts. This tool includes: A barrel nut wrench that can handle mil-spec barrel nuts and delta ring assemblies 1/2 torque wrench adaptor Castle and jam nut wrench (for both old and new style castle [...]