Lockheed Martin Corp., Fort Worth, Texas, is awarded a $77,847,256 modification (P00002) to a previously awarded, cost-plus-incentive-fee contract (N0001921C0040). This modification adds scope to provide for the integration of indigenous weapons into an F-35 Lightning II Joint Strike Fighter air system for a Foreign Military Sales (FMS) customer. Work will be performed in Fort Worth, Texas, and is expected to be completed in December 2025. FMS customer funds in the amount of $77,847,256 will be obligated at 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.