In 1968 the Army ceased operations at the arsenal;  were sold to the Watertown Redevelopment Authority, while the remaining  were converted to the United States Army Materials and Mechanics Research Center (AMMRC), renamed the United States Army Materials Technology Laboratory (MTL) in 1985.
In 1968 the Army ended its activities at the arsenal;  the assets were sold to the Watertown Redevelopment Authority, while the remaining facilities were redeveloped into a research center, later renamed the United States Army Materials Technology Laboratory (MTL) in 1985.