Does Section 922(d)(1) and (n) of the Criminal Code apply to felons who have been convicted of felonies?

Sections 922(d)(1) and (n) set forth a rule generally applicable to all persons possessing a certain characteristic, i.e., having been indicted for a felony. They are reasonably calculated to achieve a nonpunitive public purpose, i.e., to keep firearms out of the hands of persons who, having been indicted for felonies, may "have a somewhat greater likelihood than other citizens to misuse firearms." See United States v. Graves, 554 F.2d 65, 72 (3d Cir.1977) (en banc).

We conclude that 922(d)(1) and (n) do not meet the specificity requirement of a bill of attainder.