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Fiscal Receipts

MSE Missile

AProcurementPartial Reconciliation8260C53101
What it is
MSE Missile — a procurement program run by Army.
What changed
No FY25→26 comparison — trajectory data incomplete for this line.
Who gets it
No award linkage at high confidence.

Budget Figures

FY24 Actuals
$2.56B
FY25 Total
FY26 Request
$1.31B
FY25→26 Change

FY2026 award data is a partial year — USASpending awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →

Budget Trajectory
FY24: $2.81BFY26: $1.31BFY24FY26
FY24
$2.81B
FY26
$1.31B
Decade view — each figure cites its own President's Budget edition
FY2022 actuals — PB2024 editionFY2023 actuals — PB2025 editionFY2024 actuals — PB2026 editionFY2023 enacted — PB2024 editionFY2024 enacted — PB2025 editionFY2025 enacted — PB2026 editionFY2024 request — PB2024 editionFY2025 request — PB2025 editionFY2026 request — PB2026 editionFY22FY26

● actuals (line)  ·  ○ enacted  ·  ◇ request — gaps are editions the program is absent from, never interpolated.

SeriesFY22FY23FY24FY25FY26
Actuals$1.33B$2.47B$2.81B
Enacted$1.04B$1.21B$905.1M
Request$1.21B$963.1M$1.31B

blank = series not published for this year; – = absent from that edition.

Asked vs spent: the PB2024 book requested $1.21B for FY2024; the PB2026 book reports $2.81B actually spent — $1.60B above the request.

Program Lineage

No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.

Description

Description MSE Missile

This funding line is a key enabler of the Army Modernization Priorities in support of Air and Missile Defense. The FY 2026 request for MSE Missile includes $945,905 thousand of discretionary and $366,000 thousand of mandatory (reconciliation) for a total of $1,311,905 thousand. The mandatory funds procure an additional 96 MSE missiles in FY 2026. Further information for this reconciliation request is provided in Section 20003 of the Reconciliation Exhibit. The FY 2026 request includes $396.335 million of Overseas Operations Cost (OOC) funding in support of Operation Atlantic Resolve (OAR). FY 2026 discretionary funding supports the production of Missile Segment Enhancement (MSE) missiles, Field Surveillance Program (FSP), supporting equipment, ancillary missile items, PAC-3 Missile Support Center (P3MSC), Obsolescence, System Engineering/Program Management (SEPM), and Government/Software Engineering. The increase of funding from FY25 to FY26 supports procurement of an additional 10 MSE interceptors. The Patriot Advanced Capability 3 (PAC-3) Missile Segment Enhancement (MSE) is a high velocity hit-to-kill, surface-to-air missile capable of intercepting tactical ballistic missiles, air breathing threats, cruise missiles, and unmanned aerial systems. The PAC-3 MSE represents the current generation PAC-3 missile which provides expanded battlespace performance against evolving threats and has been fully integrated into the Patriot system (US and international partners), the IAMD Battle Command System (IBCS), and the Terminal High Altitude Area Defense (THAAD) system (US only). The PAC-3 MSE is an agile, lethal interceptor providing substantial missile capabilities when combined with critical ground system improvements deployed specific to the M903 launching station. The PAC-3 MSE enhances Insensitive Munitions (IM) through a less sensitive, increased performance lethality enhancer, and the addition of armor and a thermally initiated venting system. A single canister design provides enhanced warfighter and logistics flexibility and facilitates improved IM performance for greater warfighter safety. The Patriot Advanced Capability-3 (PAC-3) Missile Field Surveillance Program (FSP) is required to ensure that the reliability, performance, and safety of fielded missiles in the Patriot family remain within the classified system specification for the life of the system. Initial FSP tasks confirm the quality of design, materials, tooling and test equipment procedures, and processes used in the manufacture of the Patriot Family of Missiles (PFoM). After missile deployment, results from surveillance firings, inspections, functional tests, storage and aging programs, and depot level missile maintenance processing provide the data required for the assessment of reliability, performance, and safety of the missile stockpile. The PFoM are fielded under the Certified Round Concept. Under this approved concept, the missiles are capable of being placed in extended storage as part of war reserve stocks or deployed in operational units for variable periods and then fired without intervening tests or checkouts. In accordance with the Certified Round Concept, the reliability/performance of the missile is certified by the Short and Intermediate Effectors for Layered Defense (SHIELD) Project Office to be at an acceptable level for a stated period of time or corrective action is taken. The certification of reliability is made possible through the use of the PAC-3 Missile Support Center (P3MSC) contract to use technical support and knowledge of the testing of discrete lots of component parts, subassemblies and assemblies which the prime contractor Lockheed Martin Missiles and Fire Control (LMMFC) provides as the only source of technical knowledge, expertise, and facilities to perform FSP activities and process PFoM. SEPM support encompasses the overall planning, management, and control of the PAC-3 MSE program including all engineering and program management disciplines and activities.

Justification

Justification MSE Missile

The FY 2026 request for MSE Missile includes $945,905 thousand of discretionary and $366,000 thousand of mandatory (reconciliation) for a total of $1,311,905 thousand. The mandatory funds procure an additional 96 MSE missiles in FY 2026. Further information for this reconciliation request is provided in Section 20003 of the Reconciliation Exhibit. FY 2026 procurement dollars support the production of Missile Segment Enhancement (MSE) missiles, Field Surveillance Program (FSP), supporting equipment, ancillary missile items, PAC-3 Missile Support Center (P3MSC), Obsolescence, System Engineering/Program Management (SE/PM), and Government/Software Engineering. Prior Year unit cost on P-40 does not reflect classified quantities. P-40 does not reflect the correct quantity or unit cost for FY 2026. Quantities procured with discretionary funds total 224 based on a unit cost of $3.871 million. The Army Requirements Oversight Council Memorandum (AROCM) approved a PAC-3 MSE AAO/APO increase from 3,376 to 13,773 on 16 April 2025. Unit prices reflect an assessed yearly Foreign Military Sales (FMS) procurement of PAC-3 missile variants. In the event FMS procurements do not occur at this level, the budgeted missile unit price may not be achievable. The Army intends to convert any price advantage created through contract negotiations, other service procurement, and/or foreign military sales to increase the Army procurement MSE missiles.

Budget Line Items(workbook-cited)

Exhibit P-1

AccountOrgTypeAmount
Missile Procurement, ArmyAFY24 Actuals$2.81B
Missile Procurement, ArmyAFY25 Enacted$905.1M
Missile Procurement, ArmyAFY26 Disc. Request$945.9M
Missile Procurement, ArmyAFY26 Reconciliation$366.0M
Missile Procurement, ArmyAFY26 Total$1.31B

Budget Details(R-2/P-40 facts)

ProjectAll Prior YearsFY24 ActualsFY25 TotalFY26 BaseFY26 Request
Program Element$10.4B$2.56B$905.1M$549.6M$945.9M

No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →

Awards

No awards are linked to this program element at high confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.

Lobbying Mentions

No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.

Program dossier

Every sentence below carries its citation — warehouse figures open the citation panel, news claims link the cached source.

Research dossiers exist for 50 of 1741 programs — the 50 largest fully J-book-detailed programs by FY2026 request. why no dossier here? →

What it is

  • MSE Missile (budget line item 8260C53101) is a U.S. Army procurement line funded in the Missile Procurement, Army account.
  • The line procures the Patriot Advanced Capability 3 (PAC-3) Missile Segment Enhancement (MSE), a high-velocity hit-to-kill surface-to-air missile capable of intercepting tactical ballistic missiles, air-breathing threats, cruise missiles, and unmanned aerial systems.
  • The program is a key enabler of the Army Modernization Priorities in support of Air and Missile Defense; the PAC-3 MSE is fully integrated into the Patriot system, the Integrated Air and Missile Defense Battle Command System (IBCS), and the Terminal High Altitude Area Defense (THAAD) system.
  • Beyond the missiles themselves, FY2026 discretionary funding supports the Field Surveillance Program, supporting equipment, ancillary missile items, the PAC-3 Missile Support Center, obsolescence work, and system engineering and program management.

Why it matters

  • The line's total FY2026 request is $1,311,905 thousand (about $1.31 billion), up from $905,060 thousand (about $905 million) enacted in FY2025.
  • The FY2026 request splits into a discretionary request of $945,905 thousand (about $946 million) and a reconciliation (mandatory) request of $366,000 thousand (about $366 million).
  • The $366,000 thousand reconciliation request is additional mandatory funding on top of the discretionary base, together making up the line's $1,311,905 thousand FY2026 total.
  • In FY2024 the line recorded actual obligations of $2,814,908 thousand (about $2.8 billion), so the FY2026 request is well below that peak execution year.
  • The program's own budget narrative states the mandatory funds procure an additional 96 MSE missiles in FY2026, with further detail provided in Section 20003 of the Reconciliation Exhibit.
  • The narrative also notes the FY2026 request includes $396.335 million of Overseas Operations Cost funding in support of Operation Atlantic Resolve.

Key players

  • The program is run by the U.S. Army, with funding drawn from the Missile Procurement, Army appropriation.
  • The Army Requirements Oversight Council approved an increase in the PAC-3 MSE approved acquisition objective from 3,376 to 13,773 missiles on 16 April 2025, and the Army intends to convert price advantages from contract negotiations, other-service procurement, and foreign military sales into additional MSE missile buys.