{
  "id": "atacms",
  "name": "MGM-140 ATACMS",
  "aliases": [
    "Army Tactical Missile System",
    "MGM-164",
    "MGM-168"
  ],
  "domain": "missile",
  "country": "USA",
  "category": "Short-range ballistic missile",
  "status": "in-service",
  "fielded": 1986,
  "operators": [
    "USA",
    "BHR",
    "GRC",
    "KOR",
    "TWN",
    "TUR",
    "ARE"
  ],
  "summary": "Single-stage, solid-propellant tactical ballistic missile fired from M270 MLRS and HIMARS launchers.",
  "specs": [
    {
      "k": "range_max_km",
      "v": 300,
      "src": [
        "csis-atacms"
      ],
      "conf": "medium",
      "note": "Block 1A; Block 1: 165 km"
    },
    {
      "k": "payload_kg",
      "v": [
        160,
        560
      ],
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "launch_weight_kg",
      "v": [
        1321,
        1673
      ],
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "length_m",
      "v": 3.98,
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "diameter_m",
      "v": 0.61,
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "propulsion",
      "v": "Single-stage solid propellant",
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "warhead",
      "v": "HE, HE blast fragmentation, 300–950 submunitions",
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    },
    {
      "k": "basing",
      "v": "Road-mobile (M270, HIMARS)",
      "src": [
        "csis-atacms"
      ],
      "conf": "medium"
    }
  ],
  "verified": null,
  "changelog": [
    {
      "date": "2026-10-03",
      "change": "Initial draft entry from cited open sources"
    },
    {
      "date": "2026-10-03",
      "change": "Added payload options and capabilities"
    },
    {
      "date": "2026-10-04",
      "change": "Added photo (Public domain)"
    }
  ],
  "art": "srbm",
  "image": {
    "file": "atacms.jpg",
    "thumb": "atacms-thumb.jpg",
    "credit": "US Army",
    "license": "Public domain",
    "url": "https://commons.wikimedia.org/wiki/File:US-ROK_exercises_5_July_2017.jpg",
    "title": "File:US-ROK exercises 5 July 2017.jpg"
  },
  "payloads": [
    {
      "name": "ATACMS Block 1",
      "role": "Area targets",
      "src": [
        "csis-atacms"
      ],
      "conf": "medium",
      "range_km": 165,
      "caps": {
        "Warhead": "Submunitions (300–950)"
      }
    },
    {
      "name": "ATACMS Block 1A",
      "role": "Extended range",
      "src": [
        "csis-atacms"
      ],
      "conf": "medium",
      "range_km": 300,
      "caps": {
        "Payload": "160–560 kg",
        "Warhead": "HE, blast fragmentation or submunitions"
      }
    }
  ],
  "url": "https://www.defensepedia.com/systems/atacms.html",
  "sources": {
    "csis-atacms": {
      "title": "Army Tactical Missile System (ATACMS)",
      "publisher": "CSIS Missile Defense Project",
      "url": "https://missilethreat.csis.org/missile/atacms/",
      "published": "2024-04-23",
      "tier": 2,
      "checked": "2026-10-03"
    }
  }
}