No. C.R.S. 18-12-203 (c) states: A sheriff shall issue a permit to carry to an applicant who is not ineligible to possess a firearm pursuant to Federal Law. Federal law 18 USC 922 (g) (3), prohibits any person who is an unlawful user of or addicted to any controlled substance from shipping, transporting, receiving or possessing firearms or ammunition. Marijuana is listed in the Controlled Substances Act as a Schedule I controlled substance, and there are no exceptions in federal law for marijuana purportedly used for medicinal purposes, even if such use is sanctioned by state law. Federal law 18 USC 922 (d) (3), also makes it unlawful for any person to sell or otherwise dispose of any firearm or ammunition to any person knowing or having reasonable cause to believe that such person is an unlawful user of or addicted to a controlled substance.
Any person who uses or is addicted to marijuana, regardless of whether his or her state has passed legislation authorizing marijuana use for medicinal purposes, is an unlawful user of or addicted to a controlled substance, and is prohibited by federal law from possessing firearms or ammunition.
Visit the concealed handgun permits webpage for more information.