Model 727 = early M4?

[Gunmaster45]

Originally Posted by MT2008

The only difference is that the Model 727 is full-auto, the Model 777 fires burst. Otherwise, they are identical, as best I can tell.

I thought that during the figthing in Mogadishu (filmed in "Black Hawk Down"), the Colt Carbines they were using were burst guns. I can assume in actual life they weren't using the 727 Carbines (at least not Gary Gordon, who was said to fire his Commando in three-burst when defending the second crash site), but what were they using then? The M4 (777 model) came out a year after the event.