The $45 million plant in the Nashville suburb of Gallatin is projected to create 300 new jobs.
The family-owned company has operated in Italy since 1526. Beretta makes a variety of firearms, ranging from hunting shotguns to the U.S. Armed Forces M-9 pistol.
Beretta officials said Wednesday that have reached capacity in Maryland, requiring the expansion elsewhere.
Beretta said it plans to complete the new factory this year.
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