MSI-Defence Systems US LLC,* Rock Hill, South Carolina, is awarded a $29,263,267 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for the procurement of the MK 48 Mod 2 Electro-Optical Sight (EOS), EOS spare parts and transportation cases, and evaluation and repair of EOS subassemblies in support of the MK 38 Mod 4 Machine Gun System for the Navy, Coast Guard, and Military Sealift Command. Work will be performed in Norwich, United Kingdom (56%); and Rock Hill, South Carolina (44%), and is expected to be completed by September 2026. Fiscal 2023 weapons procurement (Navy) funds in the amount of $7,601,246 (57%); and fiscal 2023 shipbuilding and conversion (Navy) funds in the amount of $5,700,936 (43%), will be obligated at time of award; the funding will not expire at the end of the current fiscal year. This contract was not competitively procured via the sam.gov website, with one offer received. This is a sole source action in accordance with Federal Acquisition Regulation 6.302-1, only one responsible source. MSI-Defence Systems US LLC is the original equipment manufacturer of the systems and the only company who can provide the systems and perform the required evaluation and repairs. No other supplies or services will satisfy agency requirements. Naval Surface Warfare Center, Crane Division, Crane, Indiana, is the contracting activity (N0016423DJQ13).