An Iowa man who illegally made and sold fireworks and explosive devices has been sentenced to 46 months in prison.

U.S. District Judge John Jarvey approved the sentence Wednesday for 31-year-old Rodney Crosby of Pisgah, in western Iowa.

The sentence had been recommended under a plea agreement in which Crosby admitted guilt to being a felon in possession of firearms and explosive devices.

Investigators were called to Crosby’s home in 2011 during a domestic disturbance, and they found a cache of guns, ammunition, home-made explosive devices and commercial fireworks. Crosby told agents that he made good money manufacturing and selling fireworks, including some so powerful they could take down wooden utility poles.

Crosby had earlier been convicted of felonies for theft and insurance fraud in Nebraska, where he grew up.