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.

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M61 Vulcan (Picture source: Robert Frola)

The M61 Vulcan is a hydraulically, electrically or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm (0.787 in) rounds at an extremely high rate (typically 6,000 rounds per minute). The M61 and its derivatives have been the principal cannon armament of United States military fixed-wing aircraft for sixty years.

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