ImSAR LLC,* Springville, Utah, is awarded a $7,635,961 modification (P00001) to a cost-plus-fixed-fee, firm-fixed-price order (N6833520F0625) against a previously issued basic ordering agreement (N6833518G0015). This modification exercises options to provide research, development, procurement, and sustainment of the ground surveillance radar product designated AN/DPY-2(v)1 and (v)2 Split Aces payload system in support of the RQ-21A Blackjack Unmanned Aerial System software. This modification continues efforts in support of system and simulation training capabilities improvements for system operators under small business innovation research topic AF112-144 titled, “Advanced Radar Concepts for Small (Tier I/II) Remotely Piloted Aircraft”. Work will be performed in Springville, Utah (95%); and Patuxent River, Maryland (5%), and is expected to be completed in September 2023. Fiscal 2021 aircraft procurement (Navy) funds in the amount of $7,442,631; and fiscal 2021 operation and maintenance (Navy) funds in the amount of $193,330 will be obligated at time of award, $193,330 of which will expire at the end of the current fiscal year. The Naval Air Warfare Center Aircraft Division, Lakehurst, New Jersey, is the contracting activity.