public class Inventory : MonoBehaviour
{
    public List<GameObject> itemsGOInInventory = new List<GameObject>();

    public void AddItem(GameObject itemToBeAdded)
    {
        itemsGOInInventory.Add(itemToBeAdded);
        Destroy(itemToBeAdded);
    }

    public void FindItem(string name)
    {
        foreach (GameObject item in itemsGOInInventory)
        {
            if (item.GetComponent<Item>().itemName == "pistol")
            {
                Instantiate(item.GetComponent<Item>().itemObject, this.transform);
            }
        }
    }
}

public class InventoryItem
{
    string name;
    string description;
    string spritePath;
    // other variables
}

public class InventoryItemView : MonoBehaviour
{
    public InventoryItem item;
    // ...
}

public class Inventory : MonoBehaviour
{
    public List<InventoryItem> itemsGOInInventory = new List<InventoryItem>();

    public void AddItem(GameObject itemToBeAdded)
    {
        itemsGOInInventory.Add(itemToBeAdded.GetComponent<InventoryItemView>().item);
        Destroy(itemToBeAdded);
    }
//...
}

itemToBeAdded.SetActive(false);