{
  "materials": [
    {
      "item": {
        "tag": "forge:plates/brass"
      },
      "count": 16
    },
    {
      "item": {
        "tag": "forge:plates/iron"
      },
      "count": 8
    },
    {
      "item": {
        "tag": "minecraft:logs"
      },
      "count": 4
    }
  ],
  "result": {
    "type": "gun",
    "id": "create_armorer:shotgun_pump_bearing"
  }
}