Sharma Sukdeo, was indicted in March last year on one count of dealing firearms without a license and plead guilty in December.
Senior United States District Judge Lawrence Kahn also imposed a USD 3,000 fine and a 2-year term of supervised release, to begin after Sukdeo's release from prison.
According to the plea agreement, between September and October 2014, Sukdeo sold three firearms and ammunition to a person working with the Federal Bureau of Investigation.
Each sale was completed at a convenience store in Schenectady here.