No, they're unacceptable because they are an extruded hollow tube with an end welded in place.
Guess where they fail?
Mil spec is a forged aluminum solid unit, milled to proper dimensions. Its also why the threads are different between the two processes.
Another poster made the point that some commercial spec tubes are better than mil spec. It is true that there are some non-mil spec tubes that are better but I've never heard them advertised as commercial spec.
well there is no 'commecial spec' outside of the thread and size Im sure. its just not mil spec. I imagine some of the non-mispec ones are just as good/better than mil-spec, and many aren't. making it easier to stick to milspec