I've been looking for a detonics to carry and had pretty much decided on a MK IV or Mark V. I've run across an early gun for a good price with 3 mags though. The serial number though is I5361 which I believe puts this in the welded catagory correct?

I don't care about looks at all but I want a gun that is solid to shoot. Would that serial number be to earlier for a heavy user?