how to hange Sprites depening on a float value?

I have a gameobject that every 5 seconds spawns an Enemy prefab, and that enemy can have 5 different weapons, randomly chosen, and with each weapon, it has a different sprite, I got the weapons working, but the sprite wont change, can somebody help me?

     private float Type;  //Type is the random value
     public Sprite Pistol;  //Sprite with a Pistol
     public Sprite Shotgun;  //Sprite with a Shotgun
     public Sprite SniperRifle;  //Sprite with a Sniper Rifle
     public Sprite Flamethrower;  //Sprite with a Flamethrower
     public Sprite Bazooka;  //Sprite with a Bazooka
     //*Al Sprites have been assigned in the editor
 
     void Awake() //Its called before Start
     {
         Type = Random.Range(0, 10); //Type is assigned randomly between 0 and 9
         Debug.Log("" + Type); //Just to see what was chosen
     }
     
     void Start()
     {
         if (Type < 3 && Type >= 0) //If value is 0 or greater and less than 3
         { // enemies with Type 0, 1 and 2 will have pistol
             gameObject.GetComponent<SpriteRenderer>().sprite = Pistol;
         }
         if (Type < 5 && Type >= 3) //If value is 3 or greater and less than 5
         { //enemies with Type 3 and 4 will have Shotgun
             gameObject.GetComponent<SpriteRenderer>().sprite = Shotgun;
         }
         if (Type == 5) //If Type is 5
         {  //Only enemies with Type 5 will have a bazooka
             gameObject.GetComponent<SpriteRenderer>().sprite = Bazooka;
         }
             if (Type < 8 && Type >= 6) //If Type is 6 or greater and less than 8
         {  //Enemies with Type 6 and 7 will have a Sniper Rifle
             gameObject.GetComponent<SpriteRenderer>().sprite = SniperRifle;
         }
         if (Type < 10 && Type >= 8) //If Type is 8 or greater and less than 10
         {  //Enemies with Type 8 and 9 will have Flamethrower
             gameObject.GetComponent<SpriteRenderer>().sprite = Flamethrower;
         }
       //As you can see, Pistol is the most common and Bazooka the rarest
     }
     

I dont know why it wont work, I mean, It wont ever change from Pistol Sprite, which is already assigned to the prefab in the editor, and I dont want guys with a Pistol shooting rockets.

Thanx