M231 M232 Series Modular Artillery Charge System

The M231 M232 Series Modular Artillery Charge System is a multiple-award Indefinite Delivery/Indefinite Quantity (IDIQ) contract focused on procuring modular artillery propelling charges for 155mm field artillery weapons. The contract supports a "build-a-charge" incremental-based system that allows for flexible charge configurations across different operational zones, with the M231 charges used for Low Zones (1 & 2) and the M232-Series charges used for High Zones (3, 4 & 5). The contract enables the U.S. Army to acquire Load, Assemble, and Pack (LAP) services and production quantities of these specialized artillery propulsion systems, with a total shared ceiling value of $133,212,118.80.

The task orders under this IDIQ consistently support U.S. Army artillery modernization efforts and recent Ukraine defense priorities, with most being firm-fixed-price delivery orders. Prime contractors include American Ordnance LLC (a Day & Zimmermann Group subsidiary) and General Dynamics OTS (Niceville), Inc., who have been awarded multiple task orders. Typical order values range from approximately $7 million to $60 million, with performance periods extending to 2030. The delivery orders are predominantly not set aside, funded by Program Executive Office Ammunition and the Department of the Army, and perform work primarily in locations like Middletown, Iowa, Hampton, Arkansas, and Niceville, Florida. Recent task orders have focused on purchasing production quantities and first article test quantities of M231 and M232A2 modular artillery charge system propelling charges.