I have both a 9422 and a 9422M.
Both were made in 1972, the first year of production. Both have 4-diget serial numbers about 1,100 apart.
Most excellent rifles in every way.
Be aware however, that by the time Winchester stopped making them in 2005, the machinery was well worn out.
If you can find an earlier one with the same look as an old 94 Winchester 30-30, there has not been a better or more accurate lever-action .22 made.
rc