Official Objectivists often claim they aren't libertarians. The idea seems to be that libertarianism claims that one can have any (or no) foundation for a theory of rights. As someone said, this is like arguing that Objectivists aren't atheists because atheists disagree on the basis of their atheism.
Consider also the types of people who call themselves "individualists":
2. John Dewey (pragmatist and socialist)
3. Milton Friedman (positivist and free market advocate)
4. Ludwig von Mises (utilitarian and laissez-faire advocate)
5. Murray Rothbard (Aristotelian and anarcho-capitalist)
A fairly diverse lot, both in terms of ethical commitments and politics.