Can't Switch Between Legacy Animations

I have 2 animations for an FPS arm/gun. One for $$anonymous$$pfire and one for aiming down sights. The problem is it only plays the $$anonymous$$pfire animation even when aiming down sights. I'm using a simple javascript in Unity 5. Is there somet$$anonymous$$ng I'm missing?

The "Pistol001Shot" is the $$anonymous$$pfire and the "Pistol001ShotAim" is the aim down sights.

 var gunsound : AudioSource = GetComponent.<AudioSource>();
 
 function Update () 
 {
     if (Input.GetButtonDown("Fire1"))
     {
         if (Input.GetButtonDown("Fire2"))
         {
             gunsound.Play();
             GetComponent.<Animation>().Play("Pistol001ShotAim");
         }
         else if (!Input.GetButtonDown("Fire2"))
         {
             gunsound.Play();
             GetComponent.<Animation>().Play("Pistol001Shot");
         }
     }
 }