2D GunPivot Bug

In my game i use joystick axis X to move around and joystick axis 3 and 4 to rotate the gun around. The 3rd axis also flips the player. The clamp just prevents it from going too high for each player class. Everything works fine until i flip the player. Then the gun is either at the top of the clamp when 4th axis is greater than 0, bottom when it's less than 0, or in the middle when it's at 0. Here's the code :

 using UnityEngine;
 using System.Collections;
 
 public class GunMove : MonoBehaviour 
 {
     public int player = 0;
     string xAxis = "X P1";
     string yAxis = "Y P1";
     public float clamp;
     public bool isFacingRight=true;

     void Update () 
     {
         float x = Input.GetAxis(xAxis);
         float y = Input.GetAxis(yAxis);
 
         float angle = Mathf.Atan2(y,x) * Mathf.Rad2Deg;
         angle = Mathf.Clamp(angle, -clamp, clamp);
 
         transform.localEulerAngles = new Vector3(0, 0, angle);
 
         if(x > 0 && !isFacingRight)
         {
             Flip();
         }
 
         if(x < 0 && isFacingRight)
         {
             Flip();
         }
     }
 
     void Flip()
     {
         Vector2 parentScale = transform.parent.localScale;
         parentScale.x *= -1;
         transform.parent.localScale = parentScale;
 
         isFacingRight = !isFacingRight;
     }

Here's a video of the game bug

Thanks for any help