Argon ST Inc., Fairfax, Virginia, is awarded a $21,002,706 undefinitized contract action, ceiling-priced delivery order (N00383-22-F-ST00) under a previously awarded basic ordering agreement (N00383-22-D-ST01) for the procurement of nine amplifier chassis for the support of operations of the MQ-4C Triton with the first deployment of IFC 4-configured unmanned aircraft system. All work will be performed in Fairfax, Virginia, and is expected to be completed by March 2025. Aircraft procurement (Navy) funds in the full amount of $21,002,706 will be obligated at the time of award, and funds will not expire at the end of the current fiscal year. One company was solicited for this sole-source requirement under authority 10 U.S.C. 2304 (c)(1), with one offer received. Naval Supply Systems Command Weapon Systems Support, Philadelphia, Pennsylvania, is the contracting activity.