Police say that Beck pointed the Claymore mine at a victim and held up a trigger device. The Claymore mind was ultimately determined to be inert and not functional.
Police say they found additional military-type equipment in the green duffel bag.
Beck served four years on active duty and 16 years in the reserves. Police say they found a second inert Claymore mine during a search of his home Wednesday night.
Beck was charged with assault by means of a dangerous weapon, possession of hoax device and receiving stolen property.
Beck is expected to be arraigned on Thursday.