I think because no one really carry a 1911 with bull barrel or long dust cover. I'm talking about everyday concealed carry for most folks. There may be some out there who pack those type of guns but they're the exception. As far as I know, the 1911 that the "D" boys and MEUSOC use don't have bull barrel nor long dust cover. You can't get any more "tactical" than the D boys, the NFL champ of special ops.