You say you were arrested for having a concealed weapon that that it was a felony arrest. Were you, however, convicted of a felony or were the charges later dropped or plead down to a misdemeanor? If you have a felony conviction then you are, by federal law, prohibited from buying or even owning a firearm.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar