New Castle police said 27-year-old Jordan Hamilton, of Wilmington, was arrested for allegedly stealing over $99,000 worth of gold coins from a package.
Police said they began investigating Hamilton in September and were able to execute a search warrant on his home, where they found stolen gold and silver.
Police also found several firearms, including a 12-gauge shotgun with an "obliterated" serial number, as well as a 9mm handgun that was also reported stolen out of Philadelphia.
Hamilton is facing multiple charges, including felony theft of property valued greater than $50,000.
He turned himself in on Nov. 10. His bail was set at $21,000 unsecured and he was later released.
FedEx released this statement to Action News on Hamilton's arrest: "The safety and security of our customers' shipments is a top priority, and we do not tolerate the use of our network for illegal purposes. We have fully cooperated with authorities in this investigation."