Good question! I have Pate's book, but missed that section. I always assumed the barrel conversions were done by a surplus disposal contractor to enhance their retail market potential. Considering their intended use, I cannot imagine any Commando being used so much that it needed rebuilding. I wonder if that information is correct?If there was no re-build program, then who converted all those 4" Commandos to 2" guns after the initial run was over?
I don't willingly wish to add to the confusion surrounding these scarce collectibles, but please permit me to clarify the finish question .....According to this link, although, I do not know who wrote it, the author calls the finish a "Matte Blue" http://coolgunsite.com/pistols/ColtCommando/default.html