Artillery components · 155mm · M231 / M232 MACS
155mm Propelling Charges
Also known as (7)
- MACS
- Modular Artillery Charge System
- M231
- M232
- ERMC
- propelling charge
- 155mm Propelling Charge
Modular charges that propel a 155mm projectile. Each MACS increment includes propellant, an ignition system and a combustible case; the M231 is the low zone and the M232 the high zone.
- —
- 18,000 charges / mo
- Producing countries
- 1
- Last figure
- Stale · Apr 2026
The capacity is United States's alone. This is what the ledger can account for. Where no figure has been published for a producing country, only the plants and producers a source has named are counted, so the real total is higher.
Production by scope
Each country the item is made in, broken down into the producers and plants a source has named. A plant’s figure is part of its country’s, never added to it.
| Scope | Producer | Output / mo | Capacity / mo | Updated | Evidence and chart |
|---|---|---|---|---|---|
 United States | — | 18,000 | Stale · Apr 2026 | ||
| Hampton, Arkansas | General Dynamics OTS | — | — | Stale · Apr 2026 | |
| Iowa Army Ammunition Plant | American Ordnance | — | — | Stale · Apr 2026 |
History
Every published figure for one line. The band is the range a source gave; hollow points are estimates; dashed is a target or forecast; grey points were corrected later.
No figures to chart for this line.
The figures in this chart
| Date | Value | Range | Basis |
|---|
Promises vs delivery
Each announced target or forecast, next to what was reported once its date arrived.
Capacity forecast · United States · American Ordnance · Iowa Army Ammunition Plant
125,000 charges per month by Sep 2027
A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) 1 Apr 2026PendingNo comparable figure published yet
Capacity forecast · United States · General Dynamics OTS · Hampton, Arkansas
125,000 charges per month by Sep 2027
A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) 1 Apr 2026PendingNo comparable figure published yet
Capacity forecast · United States · General Dynamics OTS · Hampton, Arkansas
125,000 charges per month by Sep 2027
A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) 1 Apr 2026PendingNo comparable figure published yet
Figures and evidence
Every published figure that stands, with the sentence each one rests on. A figure is never edited: a correction is a new figure, and the old one is kept below.
United States 5
figures
Stated for the country
18,000 charges per month
stated 6 Sep 2024
Capacity Reported high- B2 U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 10 Jan 2025Quote checked against the document
- B2 U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 6 Sep 2024Quote checked against the document
-
14,494 charges per month
2022
Capacity Reported high- B2 U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 6 Sep 2024Quote checked against the document
- B2 U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 10 Jan 2025Quote checked against the document
-
Hampton, Arkansas General Dynamics OTS
125,000 charges per month
2026–2027
Capacity forecast Reported highMACS M232 series, counted in increments (single modules), not complete charges. The budget book’s maximum monthly rate for FY 2027 (minimum sustaining rate 30,000; one shift 50,000).
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 555 1 Apr 2026Quote checked against the document
-
125,000 charges per month
2026–2027
Capacity forecast Reported highMACS M231 series, counted in increments (single modules), not complete charges. The budget book’s maximum monthly rate for FY 2027 (minimum sustaining rate 30,000; one shift 50,000).
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 518 1 Apr 2026Quote checked against the document
-
Iowa Army Ammunition Plant American Ordnance
125,000 charges per month
2026–2027
Capacity forecast Reported highMACS M232 series, counted in increments (single modules), not complete charges. The budget book’s maximum monthly rate for FY 2027 (minimum sustaining rate 30,000; one shift 50,000).
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 555 1 Apr 2026Quote checked against the document
-
Across the item
109,000 charges total
2026–2027
Order target ordered by United States Reported highExtended Range Modular Charge only, a new start in FY 2027; part of the 699,183 charges ordered for FY 2027.
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 506 1 Apr 2026Quote checked against the document
-
371,706 charges total
2026–2027
Order target ordered by United States Reported highMACS M232 series only; part of the 699,183 charges ordered for FY 2027.
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 506 1 Apr 2026Quote checked against the document
-
218,477 charges total
2026–2027
Order target ordered by United States Reported highMACS M231 series only; part of the 699,183 charges ordered for FY 2027.
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 505 1 Apr 2026Quote checked against the document
-
699,183 charges total
2026–2027
Order target ordered by United States Reported highAll propelling charges on the budget line: MACS M231, MACS M232 and the Extended Range Modular Charge.
- A2 Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) p. 505 1 Apr 2026Quote checked against the document
-
≤ 57,900,000 CAD total
stated 18 Mar 2026
Investment target Canada Reported high“Up to”; a contribution agreement to establish Canada’s first facility to load, assemble and pack M231/M232 charges. No completion date given.
- B2 National Defence (Government of Canada) Minister McGuinty announces investment of $1.4 billion into Domestic Ammunition Production 18 Mar 2026Quote checked against the document
-
Sources
Every document behind the figures on this page.
- A Department of the Army, Assistant Secretary of the Army (Financial Management and Comptroller) Department of the Army Fiscal Year (FY) 2027 Budget Estimates: Procurement of Ammunition, Army (Justification Book) 1 Apr 2026
- B National Defence (Government of Canada) Minister McGuinty announces investment of $1.4 billion into Domestic Ammunition Production 18 Mar 2026
- B U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 10 Jan 2025
- B U.S. Department of Defense Fact Sheet on Efforts of Ukraine Defense Contact Group – National Armaments Directors 6 Sep 2024
Facilities
-
Hampton, Arkansas
United States · General Dynamics OTS
operating
-
Iowa Army Ammunition Plant
United States · American Ordnance
operating
B2 means a usually reliable source making a statement that is probably true.