General Dynamics-OTS Inc., Williston, Vermont, has been awarded an $88,275,000 firm-fixed-price, indefinite-delivery/indefinite-quantity requirements contract for the purchase of M61A1 Vulcan 20MM cannon guns. This contract provides for production of the guns in support of the F-16 weapon system. Work will be performed in Williston, Vermont, and is expected to be completed by Dec. 12, 2031. This award is the result of a sole source acquisition. Foreign Military Sales funds in the amount of $7,853,702 will be obligated on the first order at time of award. Air Force Life Cycle Management Center, Robins Air Force Base, Georgia, is the contracting activity (FA8520-22-D-0003).