From the Colorado state constitution
ARTICLE II
Bill of Rights
In order to assert our rights, acknowledge our duties, and proclaim the principles upon which our government is founded, we declare:
Section 13. Right to bear arms. The right of no person to keep and bear arms in defense of his home, person and property, or in aid of the civil power when thereto legally summoned, shall be called in question; but nothing herein contained shall be construed to justify the practice of carrying concealed weapons.

For what it's worth.