How Much Do Cluster Bombs Cost?

Published on March 11, 2026 | Written by Alec Pow
This article was researched using 14 sources. See our methodology and corrections policy.

Cluster munitions are designed to cover an area by dispersing many small submunitions from a shell, rocket, or aircraft-delivered canister. They are used to attack formations, vehicles, dug-in positions, or target areas where a single point explosion is less effective. They are not unitary warheads, which keep the explosive payload in one body, and they are not the same as newer designs marketed as alternative warheads that aim for area effects without leaving large numbers of unexploded submunitions. In pricing documents, the “thing” being bought can be the payload, the container, a guidance kit added to the container, or a larger procurement package that includes test assets, publications, training equipment, and contractor support.

That is why “cluster bomb cost” can mean very different things in practice. A legacy artillery cluster round like the M864 can price in the low thousands per projectile on refurbishment math, a rocket-delivered cluster munition like GMLRS DPICM can land in the low six figures per round on APUC reporting, and an air-dropped cluster bomb package such as the CBU-105 can look dramatically more expensive once the published number includes integration assets and support.

For readers looking specifically for a per-cluster-bomb estimate, the published record is strongest for named types rather than for a generic “cluster bomb” average. In the material below, that means an M864 155mm DPICM projectile at roughly $3,184 to $3,244 per round based on published refurbishment math, a GMLRS DPICM rocket at about $141,000 in base-year 2003 dollars under APUC reporting, a WCMD tail-kit buy implying roughly $23,400 per kit in one FY2005 budget example, a Sensor Fuzed Weapon around $371,500 in that same worked example, and a Saudi CBU-105 package ceiling that lands near $821,759 per counted item once weapons and integration test assets are divided into the total.

TL;DR: Public documents show the bill swinging with guidance, support, and long-tail cleanup costs, but named types do give usable estimates: low $3,000s for a refurbished M864 artillery cluster round, about $141,000 for a GMLRS DPICM rocket in base-year reporting, roughly $371,500 for a Sensor Fuzed Weapon in one FY2005 budget example, and roughly $821,759 per counted item in the Saudi CBU-105 package ceiling.

How Much Do Cluster Bombs Cost?

Jump to sections

• M864 155mm DPICM projectile: Army ammunition budget papers show M864 refurbishment funding at $36.3 million in FY2004 for 11,400 rounds and $42.0 million in FY2005 for 12,945 rounds in the Army ammunition justification book. That works out to about $3,184 per round in FY2004 and about $3,244 per round in FY2005.
• GMLRS DPICM rocket: The Dec. 31, 2023 GMLRS report lists GMLRS DPICM APUC at $0.141 million in base-year 2003 dollars in the December 2023 Selected Acquisition Report, or about $141,000 per rocket on that accounting basis.
• WCMD tail-kit related buy: Lockheed Martin described a WCMD Lot 5 award of $52.9 million for 1,655 tail kits and 100 extended-range wing kits in its contract announcement on Wind Corrected Munitions Dispenser production. This is not the full bomb body, but it shows how guidance hardware alone can run into the tens of thousands per item depending on how the lot is allocated.
• Sensor Fuzed Weapon: Human Rights Watch’s FY2005 budget compilation shows 315 Sensor Fuzed Weapons for $117.023 million in its summary of FY2005 procurement request figures for cluster systems, which works out to about $371,500 per weapon.
• CBU-105 package ceiling: A DSCA notice put a Saudi CBU-105 package at $355 million for 404 weapons plus 28 integration test assets, which is $355 million divided by 432, about $821,759 per counted item as a package ceiling in the Saudi Foreign Military Sales notification.

What we verified

• Checked recent comparison framing in our bunker buster pricing breakdown to keep “hardware” versus “program” language consistent.
• Cross-checked package-versus-round language in our Hellfire unit cost analysis, where DSCA bundle math can look higher than hardware-only lots.
• Reviewed cost-growth caution language in GAO’s program review of Sensor Fuzed Weapon issues as a reminder that unit-cost debates often mix performance and procurement content.

Cluster weapons vs unitary and alternative warheads

The simplest way to think about price drivers is to start with what the munition is trying to do. A unitary warhead concentrates energy at a point. A cluster munition trades that for area coverage, and its risk profile changes because some submunitions can fail to detonate and remain hazardous after impact. Those characteristics help explain why governments have moved toward substitutes that promise area effects with fewer unexploded hazards and less political blowback.

The international ban debate is part of the cost story because it shapes what gets bought, stored, modified, or destroyed. The Cluster Munition Monitor 2025 report describes the Convention on Cluster Munitions as a treaty that prohibits use, production, transfer, and stockpiling, and pairs that with obligations tied to stockpile destruction, clearance, and victim support. When a state pivots away from submunitions, it does not only buy different warheads. It can also pay for retrofit programs, storage changes, demilitarization contracts, and long-run clearance capacity in affected areas.

Government accounting

Public “unit cost” is a family of metrics, not a single number, and that is why readers can pull two legitimate figures for the same program and argue as if one is a mistake. Some documents focus on procurement dollars divided by procurement quantities, and some fold in research and development, test assets, and other program costs before dividing by a program quantity. That difference is not academic. It is the gap between “what did the factory deliver this year” and “what did the government spend to get the thing fielded and supported.” The numbers also move when quantities move, because fixed costs are spread across fewer or more items, and because a line item can quietly change content across years even if the name on the spreadsheet stays the same.

GAO summarized the basics in a discussion of unit-cost breach reporting, describing PAUC and the procurement unit-cost metric that DoD calls APUC in GAO’s unit-cost breach primer. For readers, the practical takeaway is to read the “included items” language around a number before treating it like a sticker price.

Label you may see	What it is dividing	What the result can include	Where it shows up
APUC or procurement unit cost	Total procurement dollars over a period	Hardware plus spares, support equipment, technical data, and changes funded in procurement	Selected Acquisition Reports and budget exhibits
PAUC or program unit cost	Total program dollars	Research, development, test, evaluation plus procurement, divided across a program quantity	Selected Acquisition Reports and breach reporting
FMS estimated cost	Package ceiling for a partner sale	Weapons plus training, publications, test assets, support equipment, logistics, and services	DSCA congressional notifications

For cluster bombs specifically, the practical reading is this: an APUC-style figure is the closest thing to a per-weapon government acquisition estimate for a named type, while an FMS ceiling is closer to an all-in delivered package estimate. That is why the GMLRS DPICM number reads like roughly $141,000 per rocket, while the Saudi CBU-105 package math reads closer to $821,759 per counted item.

Mini case 1

Artillery cluster rounds illustrate how “cost” can hide in life extension and safety fixes, not only in new builds. A 155mm DPICM projectile is a steel body that carries many small submunitions and deploys them in flight, and that basic architecture makes refurbishment tempting because the container is already paid for. What changes is the reliability and the failure profile of the submunitions and fuzes, and refurb programs often target those pain points.

The M864 is one of the common reference points because it is a 155mm DPICM family round with a published submunition count. Human Rights Watch’s chart of artillery and air-dropped cluster munition types lists the M864 projectile as carrying 72 DPICM submunitions. That matters for pricing debates because a “per projectile” dollar figure is really a container-plus-72-items package, and any reliability retrofit that touches each submunition can multiply labor and parts quickly even if the outer shell stays the same.

Using the published Army figures, the M864 refurbishment line implies a government cost of about $3,184 per round in FY2004 and about $3,244 per round in FY2005. That makes the M864 one of the clearest public examples of a low-thousands cluster-munition price point, although it reflects refurbishment funding rather than a fresh commercial-style sticker.

Mini case 2

Rockets push the cost conversation toward guidance, electronics, and integration, and public reporting reflects that. A GMLRS rocket is bought as a round that must work with launchers, fire-control software, storage rules, and warhead types. When a program carries multiple variants, unit cost is sensitive to the mix that gets procured that year, and to how much nonrecurring work is being allocated across the family.

The Army has described the Alternative Warhead as a non-cluster approach meant to hit area or imprecisely located targets. The GMLRS multiyear exhibits state that GMLRS Alternative Warhead was developed “as a non-cluster munition” in the multiyear procurement exhibit for GMLRS. Readers should also watch the dollar basis printed next to the number. A base-year figure is not a current-year invoice. It is a way to compare like with like inside the same reporting system.

For the cluster version, the Dec. 2023 reporting gives the clearest ballpark: GMLRS DPICM at about $141,000 per rocket in base-year 2003 dollars. That is a much more weapon-centric estimate than a package ceiling and helps anchor the article around an actual named cluster munition instead of around procurement theory alone.

Mini case 3

Foreign Military Sales notices can look shocking because the headline number is a package ceiling, not a weapon-only invoice. The total can include integration test assets, containers, spare parts, support equipment, training, publications, and engineering or logistics services. When you divide the package ceiling by the number of weapons, you get a rough “per weapon in this package” figure, but it is still a blend of hardware and support.

Coverage of the Saudi CBU-105 request shows how the math can be presented outside the DSCA notice itself. Airforce Technology reported the request as an estimated $355 million sale for 404 weapons and 28 integration test assets in its report on the Saudi CBU-105 deal request. That kind of write-up can help readers understand why a program number is higher than a factory-only unit cost, because the extra items are not hidden. They are part of the package by design.

As a plain-English cluster bomb estimate, that puts the CBU-105 package at around $821,759 per counted item. It is not a stripped-down bomb-body figure, but it is still one of the clearest public ways to express what a government might effectively budget per delivered item in a real-world sale.

Hidden costs

Even if you never buy another round, the ledger keeps running. Storage, surveillance, shelf-life extension, inspections, demilitarization planning, and disposal can sit in different accounts and arrive years after the procurement line that got headlines. In that sense, a cheap “per round” number can be real and still be incomplete.

The Dec. 2022 GMLRS SAR provides a rare look at that long tail, listing total O and S objective and threshold values of $204.8 million and $225.3 million in base-year 2003 dollars versus a current estimate of $768.4 million, and it notes an assumed shelf life increased to 25 years plus a disposal estimate of $45.3 million in the December 2022 Selected Acquisition Report.

The clearance bill

On the civilian side, cluster remnants convert military spending into survey and clearance budgets, staffing, equipment, and years of work. Capacity is a real constraint. Funding cuts or pauses change how many teams operate, and that changes how fast land can be released back to farming, housing, or infrastructure.

Mine Action Review reports that Laos’ 2024 Article 4 extension request put required international support at $45 million per year for clearance and risk education, according to the 2025 review of cluster munition remnants clearance. A separate public signal of scale came when HALO said the U.S. would contribute $90 million toward clearance in Laos in its announcement on the U.S. pledge for Laos clearance work.

Worked example

One way to keep the discussion grounded is to use a single-year budget request that publishes both quantities and dollars in the same place. Human Rights Watch compiled DoD FY2005 budget-request figures showing 2,507 WCMD units for $58.67 million and 315 Sensor Fuzed Weapons for $117.023 million, with a subtotal of $175.693 million across 2,822 items in its summary of FY2005 procurement request figures for cluster systems.

Using only those published inputs, $58.67 million divided by 2,507 is about $23,400 per WCMD, and $117.023 million divided by 315 is about $371,500 per Sensor Fuzed Weapon, with the subtotal staying at $175.693 million as the combined request.

That worked example matters because it finally translates the budget lines into named cluster-weapon estimates. On this math, a WCMD-related procurement line comes out in the low $20,000s per item, while a Sensor Fuzed Weapon lands in the high $300,000s per weapon. Alongside the M864 estimate in the low $3,000s, the GMLRS DPICM estimate near $141,000, and the CBU-105 package figure near $821,759, it gives readers an actual spectrum of what governments may pay for different cluster munition types rather than just a general lesson in acquisition categories.

If you want a broader campaign lens, compare these line items against the kind of all-in tallies shown in our bombing Iran cost breakdown, where operations, platforms, and munitions can get bundled into one headline number.

Answers to Common Questions

Why do some “per weapon” numbers look so high?

Many published figures are package ceilings that include training, publications, support equipment, services, and test assets. Dividing a package total by the weapon count creates a blended figure that is useful for context, but it is not a hardware-only invoice.

Can one public source settle the price question?

Not usually. A Selected Acquisition Report, a service procurement exhibit, and a DSCA notice can each be accurate and still answer different questions. The safest approach is to match the number to the document type and what it includes.

What is the cleanest way to compare cluster and non-cluster substitutes?

Start by comparing documents that use the same unit basis and year basis, then look for add-ons like guidance kits, integration, and support. After that, factor in long-tail costs like storage, disposal, and clearance obligations that can sit outside the procurement line.

So what is the best public estimate for a cluster bomb?

It depends on the type. In this article, the clearest public estimates are roughly $3,184 to $3,244 for an M864 155mm DPICM projectile on refurbishment math, about $141,000 for a GMLRS DPICM rocket in base-year reporting, about $371,500 for a Sensor Fuzed Weapon in the FY2005 worked example, and about $821,759 per counted item in the Saudi CBU-105 package ceiling.