XLBND400 ''B'' Large Handle MIG GUN 400A MIG Gun for Heavy Industrial Welding Direct-fit replacement MIG gun with Bernard® BTB B Series large curved handle. 400A air-cooled design for demanding, high-production environments. Key Features 400A rating – 100% duty cycle with CO₂ Large curved handle – comfortable, reduces fatigue Air-cooled – continuous heavy-duty operation 360° rotatable neck option – improved access in tight spaces Compatible with AccuLock™, Centerfire™, Quik Tip™ consumables Interchangeable power pins – Miller, Lincoln, Euro, Tweco PerformanceStable arc, consistent feed. Supports solid wire up to 5/64″ (2.0mm) and aluminum wire up to 1/16″ (1.6mm). Ideal ApplicationsHeavy fabrication, structural welding, shipbuilding, heavy equipment, high-production shops. Quality built. Weld with confidence.











