Citation(s) from the GunPolicy.org literature library
State of Colorado. 2013 ‘Offenses Relating to Firearms and Weapons - Defacing a Firearm.’ Colorado Revised Statutes (Criminal Code); Title 18, Article 12 (Part 1, Section 18-12-104). Denver, CO: Colorado General Assembly. 15 December
Section 18-12-104. Defacing a firearm
A person commits a class 1 misdemeanor if such person knowingly removes, defaces, covers, alters, or destroys the manufacturer's serial number or any other distinguishing number or identification mark of a firearm.