A couple of folks have already touched on this but it seems only right that a combat model 1911 should be paired with a combat knife and a carry gun should be paired with a carryin' knife. If we decide to go with a 5" blade in honor of the original 1911 (which I think is a great idea) that gives us a chance to "split the difference" and select something like a Combat Companion or a #1-5. Either of those could be considered a combat or a carry knife depending on the gun it gets paired with.