I didn't see the Novak light rail right away but saw plenty of Caspian and Dawson rails. They looked short enough to where they would offer no problem going on a Champion.
That vast majority of folks usually buy a 1911 with a light rail already on it and the ones that get aftermarkets installed tend to get the other two brands. Is Novak's rail a new offering from them? Maybe it just hasn't caught on yet.