Referencing Other Scripts in Unity

When I try to reference a variable from another script on my project, it gives me the error "Operator '>' cannot be applied to operands of type 'MoveBlueCannon2' and 'int'".

Here is my code:

void Update () 
{
    MoveBlueCannon2 BasicAmmoBlue = GetComponent<MoveBlueCannon2>();

    if (BasicAmmoBlue > 0) 
    {
        print ("1");
    }

Ideas?