I picked up a Miller Challenger 172 MIG machine. I am new to the MIG process altogether but find that I like it.
I think this machine is fairly old but it looks as good as new, except the previous owner kept the gun lead wrapped too tightly and abused the gun. I was under the impression that it was a M-10 gun, however everything on this gun is different except for the tips. After visiting several LWS, I left realizing that I had the M-10A gun, put out by miller before the M-10 came along.
After seeing that I liked the machine, I bought a small fortune in consumables and two liners off of Ebay for an M-10 gun. I have not pulled the liner out of mine to see if the one I purchased would work, but at the LWS in their parts books, they were different p/n, so i am guessing the M-10 liners will not work. Now my question is, if I purchased a new M-10 gun, will it be plug-and-play with my machine? Also, what are the differences between the M-10 and the new M-100 guns?