Shouldn't be a problem finding those, and usually they are in better condition because they are newer than the 1st and 2nd Issues., and there were many thousands (maybe hundreds of thousands) produced. The Issue with the shrouded ejector rod, ramped front sight and larger grip stocks started in 1973, IIRC.

Mine is a 2nd issue, made in 1968, so it was near the end of the line for that issue. While it is in very nice shape, some of the bluing is starting to "age" in places. I just prefer the old time look -- maybe it's a geezer thing.

Harvey

Edited to add: I was talking about the ejector rod, not the hammer shroud. Have I misunderstood you?

H.