sentences:  The Court of Appeals struck down provisions of the Firearms Control Regulations Act as unconstitutional.Judges Karen L. Henderson, Thomas B. Griffith and Laurence H. Silberman formed the Court of Appeals panel, with Senior Circuit Judge Silberman writing the court's opinion and Circuit Judge Henderson dissenting.The court's opinion first addressed whether appellants have standing to sue for declaratory and injunctive relief in section II (slip opinion, at 5–12).