155mm Extended Range High Explosive M1128

The 155mm Extended Range High Explosive M1128 (M1128) is a Major Capability Acquisition program operating under Acquisition Category III within the Department of Defense. The program focuses on the development and acquisition of extended range high explosive ammunition systems. Operating under a Major Capability Acquisition (MCA) pathway, the program follows standard Acquisition Plan (AP) protocols for defense procurement initiatives.

The most recent contract activity under this program includes a Firm Fixed Price delivery order awarded in February 2024 for the United Maintenance Aerial Recovery Kit (UMARLK), with a ceiling value of $6.59 million and completion date of November 2025. The prime contractor, Science And Engineering Services, LLC (SES), a minority-owned Asian-Pacific American business, is supported by subcontractors including Holloway Houston, Inc., Billet Industries Inc., R2C Aerospace LLC, and UFP Technologies Inc. This contract was awarded without set-aside designation under the Army's Aviation System Modification Support 2019 indefinite delivery vehicle, with funding provided by the Army's Program Executive Office Aviation. The contract focuses on aviation components, equipment maintenance, modifications, and logistics support services.