General Dynamics‘ (NYSE: GD) land systems business has secured an $82.4 million contract to convert the U.S. Army‘s M1A2 Abrams main battle tanks to the M1A2S configuration.

The Defense Department said Friday contract work will occur in Lima, Ohio and in Sterling Heights, Michigan through March 29, 2019.

The Army Contracting Command received one proposal through an online solicitation and will obligate $5.4 milion at the time of the award from the military branch’s fiscal 2016 “other” funds.

General Dynamics-built M1A2 tanks are equipped with a manually-loaded 120mm M256 smooth bore cannon that works to fire different rounds against armored vehicles, personnel and low-flying aircraft.