Wheeler's Delta Series Professional Armorer's Wrench is designed to be the last wrench you'll need for building your perfect rifle. This tool is what every gunsmith or armorer needs to be able to build or repair their AR-15. It features a convenient torque guide on the robust handle, so guidance is never far away. It's constructed from the highest quality materials delivering you the best performance for all your gunsmithing needs at a great value. Features5/8" Fixed Stock Reciver Wrench1/2" Torque Wrench RecieverMilspec Barrel Nut Wrench3/4" Muzzle Brake Wrench