Q4010MP3EMC - Bernard BTB 400A MIG Gun, 10ft, Miller Style, .045 Wire

Industrial Grade 400A MIG Gun for Miller Feeders

The Bernard BTB (Best of the Best) Semi-Automatic MIG Gun is engineered to withstand the rigors of heavy industrial manufacturing while providing the operator with superior comfort and control. This specific configuration (SKU: Q4010MP3EMC) is rated for 400 Amps and features a 10-foot cable, making it an ideal choice for stationary bench work or fabrication cells where consistent wire feeding is critical.

Designed with a Miller-style rear connection, this gun plugs directly into compatible Miller wire feeders and welding machines without the need for adapters. It comes pre-configured for .045-inch welding wire, a standard diameter for structural steel and heavy plate fabrication. The air-cooled design eliminates the complexity of water cooling systems while maintaining high duty cycles—typically 100% with CO2 gas.

The BTB platform represents a consolidation of Bernard's legacy Q-Gun and T-Gun lines, offering a rugged handle design that resists impact and heat. The gun utilizes Centerfire consumables, which are renowned for their ease of use; the contact tip drops into the diffuser and is locked in place by the nozzle, ensuring excellent conductivity and gas flow. This system reduces downtime associated with consumable changes and troubleshooting.

Whether used in shipbuilding, heavy equipment manufacturing, or general fabrication, this Bernard MIG gun delivers reliable arc performance and wire feeding. The 10-foot length ensures the shortest path for the wire, minimizing friction and drag, which is essential for softer or flux-cored wires.