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| M224 | |
|---|---|
| Name | M224 |
| Type | Mortar |
| Origin | United States |
| Service | 1978–present |
| Used by | United States Marine Corps, Army, Navy |
| Designer | Picatinny Arsenal |
| Manufacturer | Watervliet Arsenal |
| Weight | 21.8 kg (light) / 36.3 kg (complete) |
| Caliber | 60 mm |
| Rate | 15–30 rounds per minute |
| Range | 70–3,490 m (varies by charge and round) |
M224 is a man-portable 60 mm mortar system fielded by the United States Army and United States Marine Corps as a light indirect-fire support weapon. Designed for infantry platoon-level fire support, it combines a conventional conventional-barrel and handheld configuration to deliver high-angle fire with ammunition types including high explosive, illumination, and smoke. The system emphasizes portability, rapid deployment, and integration with forward observers, fire direction centers, and light armored vehicles.
The weapon system features a two-part configuration: a conventional mortar tube with baseplate and bipod derived from earlier 60 mm designs and a handheld variant allowing use as a commando-style weapon. The barrel, baseplate, and sight elements were engineered to balance ballistic performance with weight constraints to suit infantry units employed by the United States Army Rangers, 82nd Airborne Division, and 1st Marine Division. Primary materials include high-strength steel alloys developed at Picatinny Arsenal and manufactured components from Watervliet Arsenal and private firms subcontracted by United States Army Materiel Command contractors.
Ammunition compatibility includes the 60×52mm shells used in NATO-standard light mortars, including the M720 high-explosive round, illumination rounds comparable to those used by Royal Marines systems, and white phosphorus smoke munitions similar to rounds in inventories of the British Army and French Army. Ballistic performance is managed through a graduated charge system with up to five increments, adjusting range from near-point targets at approximately 70 meters to maximum system range near 3,490 meters under optimal conditions. Fire control integrates with forward observers from units such as Joint Terminal Attack Controller teams and with fire support coordination from Brigade Combat Team assets.
The development lineage traces to mid-20th-century light mortars used in conflicts involving United States Armed Forces during the Cold War era, reflecting doctrinal shifts influenced by engagements in theaters like Vietnam War and later operations in Grenada. Formal development and trials were conducted at Picatinny Arsenal and test ranges including Aberdeen Proving Ground and Yuma Proving Ground to meet requirements set by United States Army Training and Doctrine Command and United States Marine Corps Combat Development Command.
Troop feedback from airborne units such as 101st Airborne Division and light infantry formations influenced ergonomic changes, sighting systems, and the adoption of a dual-role handheld option to support rapid assault and airborne insertions. Program management involved coordination with U.S. Army Ordnance Corps and procurement oversight by Office of the Secretary of Defense acquisition offices, with production contracts awarded to arsenals and defense firms during the late 1970s and early 1980s.
Employed at the platoon and company level, the mortar is integrated into fire plans developed by forward observers from units like Marine Air Ground Task Force and Infantry Brigade Combat Team headquarters. Tactical use includes immediate suppression in contact, harassment and interdiction missions similar to historical uses by Soviet Army light mortars, and screening maneuvers during assaults reported in after-action reports from Operation Iraqi Freedom and Operation Enduring Freedom.
Tactics emphasize dispersion, concealment, and shoot-and-scoot to mitigate counter-battery fires from artillery assets of adversaries such as forces encountered during the Gulf War. Coordination with indirect fires from systems like the M777 howitzer and close air support from F/A-18 Hornet or AH-64 Apache platforms is conducted via fire support elements, joint targeting centers, and liaison from Combat Aviation Brigade elements. Night operations exploit illumination rounds and coordination with infrared systems used by Special Forces units.
Over its service life, the mortar has seen minor variants and modernization kits addressing sighting, materials, and carriage. Modifications included updated optical and laser-compatible sighting gear influenced by systems fielded to units like 1st Special Forces Operational Detachment-Delta and enhancements enabling mounting to light vehicles similar to configurations adopted for the Humvee and airborne light vehicles used by 82nd Airborne Division. International analogues and improvements reflect technologies from makers supporting NATO integration such as those used by the Canadian Army and Australian Army.
Specialized kits for cold-weather operations adapted by units in Fort Wainwright and maritime patrol modifications tested with the United States Navy for use aboard littoral craft have been documented in procurement notices and technical manuals managed by Army Materiel Command.
Principal users include the United States Army and United States Marine Corps, with secondary service within reserve and National Guard units such as the Army National Guard and Marine Corps Reserve. Export and allied use mirror adoption patterns among NATO partners and partner nations cooperating in coalitions during NATO operations and multinational exercises hosted at locations like Camp Lejeune and Fort Bragg.
Acquisition followed standard defense contracting processes overseen by Defense Logistics Agency and lifecycle sustainment coordinated through Program Executive Office Soldier and ordnance supply chains managed at depots including Anniston Army Depot.
Training syllabi for crews are provided by service schools such as the United States Army Infantry School and the School of Infantry at Marine Corps Base Quantico. Instruction covers ballistic computation, bore safety, emplacement, disassembly, and preventive maintenance aligned with technical manuals issued by United States Army Ordnance Corps. Maintenance cycles, inspections, and supply of spares are coordinated through Defense Logistics Agency channels and depot-level repair at facilities like Tooele Army Depot and Letterkenny Army Depot.
Crew drills emphasize rapid emplacement, transition between conventional and handheld firing modes, and integration with forward observers and fire direction centers drawn from units such as Combat Support Company elements within infantry battalions.
Category:Infantry mortars