What does "CMH" at the start of a serial number stand for?
I'm looking at a postban MT6601 and noted that the serial number started with "CMH."
I've seen other Colts with "MH" at the start of the numbers and always took it to mean something like "Match Heavy" or something along those lines.
So does this mean anything?
And one other thing, this MT6601's rear sights are in a green mount with black adjusters. When did Colt do this? Never saw green sights on my M16/M4s.