18 U.S.C. sec. 922 (g):
(d) It shall be 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 -
(1) is under indictment for, or has been convicted in any court of, a crime punishable by imprisonment for a term exceeding one year;
(2) is a fugitive from justice;
(3) is an unlawful user of or addicted to any controlled substance (as defined in section 102 of the Controlled Substances Act (21 U.S.C. 802));
(4) has been adjudicated as a mental defective or has been committed to any mental institution;
(5) who, being an alien, is illegally or unlawfully in the United States;
(6) who (FOOTNOTE 1) has been discharged from the Armed Forces under dishonorable conditions;
(7) who, having been a citizen of the United States, has renounced his citizenship;
(8) is subject to a court order that restrains such person from harassing, stalking, or threatening an intimate partner of such person or child of such intimate partner or person, or engaging
in other conduct that would place an intimate partner in reasonable fear of bodily injury to the partner or child, except that this paragraph shall only apply to a court order that -
(A) was issued after a hearing of which such person received actual notice, and at which such person had the opportunity to participate; and
(B)(i) includes a finding that such person represents a credible threat to the physical safety of such intimate partner or child; or
(ii) by its terms explicitly prohibits the use, attempted use, or threatened use of physical force against such intimate partner or child that would reasonably be expected to cause bodily injury; or
(9) has been convicted in any court of a misdemeanor crime of domestic violence.
CBI denied my purchase of a firearm based on the fact that I was arrested, but I was never convicted of that crime (acquitted, deferred judgment, deferred sentence, etc).
Can I be denied for a crime I was not convicted of? YES -- CBI denies based on arrest/citation. Click here to see how that law passed. It will be up to you to contact CBI to set the matter straight. (CBI’s Insta-Check website is http://cbi.state.co.us/ic/index.htm & phone number is (303) 486-2823 )
I'm gonna say that website and phone number at the bottom is your best bet.