General Dynamics, Ordinance & Tactical Systems Inc., Williston, Vermont, is awarded a $27,937,498 firm-fixed-price contract. This contract provides obsolescence management and engineering support, as well as, procures 76 M61A2 20MM gun systems in support of Navy F/A-18 E/F production aircraft. Work will be performed in Saco, Maine (14.7%); Williston, Vermont (12.4%); Westfield, Massachusetts (8.5%); Lyndonville, Vermont (8%); Jackson, Mississippi (7%); Miami, Florida (7.8%); Daytona Beach, Florida (6.7%); Port Hueneme, California (3.9%); Saint Croix Falls, Wisconsin (3.7%); Saint Laurent, Quebec (2.6%); Fort Wayne, Indiana (2.1%); Montreal North, Quebec (1.9%); Muskegon, Michigan (1.5%); Clifton Springs, New York (1.5%); Navasota, Texas (1.4%); South Paris, Maine (1.4%); O’Fallon, Missouri (1.3%); Jackson, Michigan (1.2%); Milton, Vermont (1.2%); Berryville, Arkansas (1.2%); Dayton, Ohio (1.1%); and various locations within the continental U.S. (8.9%), and is expected to be completed in November 2024. Fiscal 2020 aircraft procurement (Navy) funds in the amount of $19,107,889 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001922C0023).