Manufacturer catalog

Letterkenny Munitions Center

Letterkenny Munitions Center is a U.S. Army Joint Munitions Command government-owned, government-operated munitions facility on Letterkenny Army Depot in Chambersburg, Pennsylvania. Its public mission covers regional and contingency munitions distribution, precision-guided munitions maintenance, and demilitarization for U.S. Army, Department of Defense, and international-partner requirements.

1 weapons

Letterkenny's munitions work grew from the World War II ordnance depot established near Chambersburg in 1941 and from the later guided-missile workload assigned to Letterkenny Army Depot. The Joint Munitions Command history says the Directorate of Ammunition Operations became Letterkenny Munitions Center in 1999, with command and control transferred to Crane Army Ammunition Activity.

The center is especially relevant to rocket and missile records because the Army designated it in 2016 as a Center of Industrial and Technical Excellence for the Multiple Launch Rocket System family of munitions, including ATACMS, GMLRS, and Low-Cost Reduced Range Practice Rocket work. Current public Army material also links Letterkenny to missile sustainment for AIM-9X, Sidewinder, AMRAAM, High-Speed Anti-Radiation Missile variants, and other Army, Navy, and Air Force weapon systems.

Precision-guided munitions maintenanceMLRS-family rocket and missile sustainmentReduced-range practice rocket productionMunitions distributionMunitions demilitarizationNon-destructive testing

Notable Systems

M28A2 Reduced-Range Practice Rocket (RRPR), 227 mm reduced-range practice rocket, Munitions

M28A2 Reduced-Range Practice Rocket (RRPR)

227 mm reduced-range practice rocket

Army reporting says Letterkenny validates, builds up, tests, and ships Low-Cost Reduced Range Practice Rocket pods by reusing MLRS rocket motors and integrating inert warheads for Army and Marine Corps training requirements.

Sources: Letterkenny training rocket requirements, Letterkenny RRPR milestone
AIM-9X Sidewinder missile, Short-range air-to-air missile, Munitions

AIM-9X Sidewinder missile

Short-range air-to-air missile

Army reporting says Letterkenny employees were certified in 2019 to perform visual inspection, sectionalization, testing, and maintenance on AIM-9X missiles and CATM-9X training missiles.

Sources: AIM-9X maintenance certification
AIM-120 AMRAAM, Beyond-visual-range air-to-air missile, Munitions

AIM-120 AMRAAM

Beyond-visual-range air-to-air missile

DVIDS reporting on Letterkenny's Joint Missile Maintenance Facility says the new facility will support Advanced Medium-Range Air-to-Air Missiles among other Air Force, Navy, and Army weapon systems.

Sources: Joint Missile Maintenance Facility
AGM-88 HARM, Air-to-surface anti-radiation missile, Munitions

AGM-88 HARM family

Air-to-surface anti-radiation missile

DVIDS reporting says the Joint Missile Maintenance Facility will support the newest variants of High-Speed Anti-Radiation Missiles, placing the HARM/AARGM sustainment family inside Letterkenny's public missile-maintenance workload.

Sources: Joint Missile Maintenance Facility

Manufacturer History

  1. Depot site ordered

    The JMC installation history says Secretary of War Henry L. Stimson ordered acquisition of more than 20,000 acres near Chambersburg for the depot on 18 December 1941.

    Sources: JMC Letterkenny installation page

  2. Letterkenny Munitions Center formed

    Joint Munitions Command records say Letterkenny Army Depot's Directorate of Ammunition Operations was renamed Letterkenny Munitions Center in 1999, with command and control transferred to Crane Army Ammunition Activity.

    Sources: JMC Letterkenny installation page, LEMC fact sheet

  3. MLRS-family CITE designation

    Army sources say the Secretary of the Army designated LEMC as the Center of Industrial and Technical Excellence for the MLRS family of munitions, including ATACMS, GMLRS, and Low-Cost Reduced Range Practice Rocket work.

    Sources: JMC Letterkenny installation page, LEMC fact sheet

  4. RRPR production line validated

    The Precision Fires Rocket and Missile Systems Project Office visited Letterkenny in January 2017 and validated Low Cost Reduced Range Practice Rocket production-line operations with no major findings.

    Sources: Letterkenny training rocket requirements

  5. 500th LCRRPR pod produced

    Army reporting says Letterkenny produced its 500th Low Cost Reduced Range Practice Rocket pod in November 2018 and shipped the certified pod for U.S. Army hands-on training.

    Sources: Letterkenny RRPR milestone

  6. Joint Missile Maintenance Facility groundbreaking

    DVIDS reporting says Letterkenny broke ground for a new Joint Missile Maintenance Facility that will support newer HARM, AMRAAM, Sidewinder, and other weapon-system variants.

    Sources: Joint Missile Maintenance Facility

Predecessors
Letterkenny Army Depot Directorate of Ammunition Operations
Website links
Official JMC installation pageJMC fact sheetLetterkenny DVIDS unit page

Letterkenny is a U.S. government munitions center, not a private prime contractor. Public Army sources describe a mix of production, integration, inspection, testing, maintenance, storage, distribution, and demilitarization work; system notes distinguish production from sustainment where the source does.

Manufacturer Sources

  • JMC Letterkenny installation pagePublisher: U.S. Army Joint Munitions Command | Note: Supports the official mission, public website, history from the 1941 depot through the 1999 LEMC rename, 2016 MLRS-family CITE designation, and current Chambersburg location. | Accessed: 2026-07-11
  • LEMC fact sheetPublisher: U.S. Army Joint Munitions Command | Note: Supports the official address, government-owned and government-operated status, mission, capabilities, 1999 command-transfer history, facility scale, and MLRS-family CITE / depot source-of-repair language. | Accessed: 2026-07-11
  • Letterkenny training rocket requirementsPublisher: U.S. Army | Note: Supports the January 2017 LCRRPR production-line validation, Letterkenny's RRPR build-up process, and production role for Army and Marine Corps training requirements. | Accessed: 2026-07-11
  • Letterkenny LCRRPR production imagePublisher: Defense Visual Information Distribution Service | Note: Supports public-domain image provenance for a Letterkenny Munitions Center employee modifying an MLRS pod for Low Cost Reduced Range Practice Rocket production. | Accessed: 2026-07-11
  • Letterkenny RRPR milestonePublisher: U.S. Army | Note: Supports the November 2018 500th LCRRPR pod milestone, full-rate production context, cost-saving claims, and description of Letterkenny integrating inert warheads and reworked ignitors. | Accessed: 2026-07-11
  • AIM-9X maintenance certificationPublisher: U.S. Army | Note: Supports Letterkenny employee certification for AIM-9X inspection, sectionalization, testing, and maintenance, plus planned AIM-9X sustainment work beginning in 2020. | Accessed: 2026-07-11
  • Joint Missile Maintenance FacilityPublisher: Defense Visual Information Distribution Service | Note: Supports the March 2025 Joint Missile Maintenance Facility groundbreaking and the stated support for newer HARM, AMRAAM, Sidewinder, and other Air Force, Navy, and Army weapon-system variants. | Accessed: 2026-07-11

Produced weapons

Category

Munitions

Standalone missiles, bombs, rockets, torpedoes, and guided or unguided explosive payloads.

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