MIG (metal inert gas) consumables are attached to a MIG gun and must be replaced when they become worn or clogged as a result of the welding process's heat and splatter. During welding activities, nozzles concentrate shielding gas on the weld pool to keep impurities away. As the electrode wire passes through the cannon, current is transferred to the contact tips. Gas diffusers distribute the shielding gas evenly throughout the weld pool. Insulators make nozzles last longer by preventing accidental contact with the electrically active diffuser. Electrode wire is guided through the gun cable to the gun nozzle by liners. The electrode wire flows between the handle and the nozzle of the MIG through conductor tubes.