Miller MDX-250 MIG Gun 1770038

New ergonomic handle improves grip and reduces welder fatigue. Rated Output – 250A Long-life Consumables Miller AccuLock MDX Series consumables available on all MDX-250 Guns. Compatibility. This gun is compatible with the Millermatic 212 Auto Set, 252, and 255 as well as the Multimatic 200 and 255 AC/DC. Duty Cycle is 100% with CO2 and 60% with mixed gas.