Libertarian Capitalism is an extreme form of Moral Liberalism.
It is a political philosophy which advocates individual rights and a limited government.
Libertarian Capitalists believe individuals should be free to do anything they want, so long as they do not infringe upon the equal rights of others.
They further believe that the only legitimate use of force, whether public or private, is to protect those rights.
For libertarians, there are no positive rights (such as to food or shelter or health care), only negative rights (such as to not be assaulted, abused, robbed or censored).