Lockheed Martin Space, Littleton, Colorado, is awarded an $18,700,000 cost-plus-incentive-fee and cost-plus-fixed-fee unpriced letter contract modification (PH0001) to a previously awarded and announced unpriced letter contract (N00030-22-C-1025) for engineering development, systems integration, and long lead material procurement in support of missile production. Work will be performed in Denver, Colorado (50.5%); Pittsfield, Massachusetts (24.6%); Sunnyvale, California (17.1%); Washington, D.C. (6.5%); and Groton, Connecticut (1.3%). Work is expected to be completed on Sept. 2, 2022. Fiscal 2021 research, development, test, and evaluation (Navy) funds in the amount of $14,025,000, which will expire at the end of the current 2022 fiscal year, are obligated upon award. This contract is being awarded to the contractor on a sole source basis under 10 U.S. Code 2304(c)(1) and was previously synopsized on the beta.sam.gov online portal. Strategic Systems Programs, Washington, D.C., is the contracting activity.