A gun once owned by a Delray Beach arms dealer is among those linked to the Paris attacks that killed 130 people, the head of a Serbian arms factory told The Associated Press. The M92 semi-automatic pistol's serial number matched one the Zastava arms factory delivered in May 2013 to the family-owned Century International Arms in Delray Beach. Century, a buyer and re-seller of military-grade surplus guns, is one of the largest arms dealers in the United States. This is not the first time that Century Arms has wound up in headlines. In 2011, The Palm Beach Post detailed how Century Arms has prospered - trading in pistols, sniper rifles and assault weapons, sometimes with the help of "unauthorized brokers" - based on secret diplomatic cables made public by WikiLeaks. In 1987, John Rugg, a former police officer and longtime Century Arms employee, told a U.S. Senate committee that the company was involved in supplying arms, including rockets and grenades, to the Contras of Nicaragua during the 1980s-era Iran-Contra scandal. Marc Adler, president of Allan Adler, a Boca Raton consulting firm that specializes in firearms, said taking a handgun out of the country involves reams of paperwork and approval by federal agencies. "The export of firearms is very heavily regulated," said Adler, who questions how the gun could have legally left the country. "The only way I think it can happen would be some type of illegal transfer."