The Army Contracting Command-Detroit Arsenal intends to modify an existing contract action to add 20 Stryker DVH A1 vehicles. The government plans to award a firm-fixed-price sole source requirements option to General Dynamics Land Systems in Sterling Heights, Michigan, under FAR 6.103-1, but will consider capability statements, proposals, or quotations from all interested responsible sources. Interested parties may request a copy of the action from the contract specialist via email, using the specified subject line, and must submit responses by email to the provided contacts. The contracting office is located in Detroit Arsenal, Michigan.