Charlie Kirk assassin's alleged gun was powerful, vintage and hard to trace

In the frantic hours after Charlie Kirk’s assassination, investigators discovered a gun in a wooded area near the scene in northern Utah.

In the frantic hours after Charlie Kirk’s assassination, investigators discovered a gun in a wooded area near the scene in northern Utah. The federal agents seeking to trace the weapon faced a daunting task.

It was a decades-old, German-made rifle built for use by the military in both World Wars, according to multiple law enforcement sources familiar with the investigation. So old that it may have been brought into the U.S. before laws were enacted in the 1960s requiring guns to be affixed with serial numbers or other marks to enable tracing.

Charlie Kirk’s Memorial Service: Final Preparations Get Underway02:28There are believed to be millions of such weapons in homes across America.

Fortunately for investigators, the alleged shooter was identified through other means — his family — who convinced him to surrender to police. But the alleged use of such a vintage weapon has raised fears among some former federal agents of the potential for other would-be assassins to seek out these powerful, accurate and hard-to-trace firearms.

“Short of the security afforded to the president, there’s no way to defend against the threat posed by this,” said Scott Sweetow, a retired official with the Bureau of Alcohol, Tobacco, Firearms and Explosives.