It seems to be in a different configuration of what people say are typical green label features. From what I've read is typical green label lowers have the large front pivot screw, mil-spec fire control pins, no sear block and a2 bird cage.
Also it seems from what I've read is that typically blue label ar's have small front pivot screw, enlarged fire control pins, have sear blocks, some with or without bayonet lugs.
Then there is the white label's. From what I have read, they had small front pivot screws, mil-spec fire control pins, raised fence and magwell, no sear block.
So it seems mine being a green label ar15 is a hodge-podge of all the features typical to one label or another. I just didnt know if any of you colt diehards out there know anything more about colt at this time in their history, if its comman during this time period (93).