CM315-35-45 - Tweco Style 300A MIG Gun, 15ft Cable, Miller Connection

Reliable 300A MIG Gun for Miller Machines

The Josef Gas CM315-35-45 is a premium quality Tweco-style MIG gun designed to deliver consistent performance in demanding industrial environments. Engineered as a direct replacement for standard 300-amp torches, this unit features a Miller back-end connection, making it instantly compatible with a wide range of Miller wire feeders and power sources. Whether you are working in a fabrication shop, performing maintenance repairs, or handling structural steel, this gun provides the durability and arc stability you need.

With a generous 15-foot cable length, this MIG gun offers superior maneuverability, allowing welders to move freely around large workpieces without constantly repositioning the machine. The gun is rated for 300 Amps, making it suitable for medium to heavy-duty welding applications. It comes pre-configured to run .035" and .045" wire, the most common sizes for structural and general fabrication work.

One of the key advantages of this model is its use of Tweco-style consumables. Because it utilizes standard 14-series contact tips, 24-series gas nozzles, and 34-series gas diffusers, finding replacement parts is easy and affordable. You won't be tied to proprietary, hard-to-find consumables. The ergonomic handle is designed to fit comfortably in the hand, reducing grip fatigue during long welding shifts, while the heavy-duty strain relief ensures the cable withstands the rigors of the shop floor.