Fire rate of different weapons after being dropped

I made two weapon types, one is a machine gun and the other one is a pistol and then made an drop and pick up system but when i drop the machine gun and select my pistol it starts shooting like the machine gun.

here is my weapon scrip:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class Weapon : MonoBehaviour
 {
     public float damage = 10f;
     public float range = 100f;
     public Text ammodisplay;
 
     public int maxAmmo = 10;
     public int Ammo = 35;
     public bool ammoEmpty;
 
     public GameObject gunModel;
 
     private PickUp pickUp;
 
     public Text ammoText;
 
     public float aimSpeed = 4;
 
     public AudioClip gunShotClip;
     public AudioClip reloadClip;
     public AudioSource audSource;
     public int currentAmmo;
     public float reloadTime = 5f;
     private bool isReloading = false;
 
     private InventoryInput inventoryInput;
 
     public bool isMachineGun;
 
     public float recoilStrength = 2f;
 
     public Camera fpsCam;
 
     public Vector3 normalPosition;
     public Vector3 aimingPosition;
 
     public bool ShootEnable = true;
     public bool isAiming = false;
 
 
     // Update is called once per frame
     void Start()
     {
         inventoryInput = FindObjectOfType<InventoryInput>();
 
         pickUp = FindObjectOfType<PickUp>();
 
         audSource = GetComponent<AudioSource>();
 
         currentAmmo = maxAmmo;
 
         ShootEnable = true;
     }
 
     void OnEnable()
     {
         isReloading = false;
     }
 
     void Update()
     {
         fpsCam = GameObject.Find("/FirstPersonPlayer/MainCamera").GetComponent<Camera>();
 
         if (currentAmmo <= 0)
         {
             ammoEmpty = true;
         }
         else
         {
             ammoEmpty = false;
         }
 
         if (Input.GetKeyDown(KeyCode.L))
         {
             Ammo += 10;
         }
 
         if (Input.GetKeyDown(KeyCode.R) && currentAmmo != maxAmmo && Ammo != 0)
         {           
                 StartCoroutine(Reload());
                 return;            
         }
 
         if(currentAmmo <= 0)
         {
             ShootEnable = false;
         }
 
         if(currentAmmo >= 0)
         {
             ShootEnable = true;
         }
 
         if (Input.GetButtonDown("Fire1") && ShootEnable == true && ammoEmpty == false && isReloading == false && inventoryInput.open == false && isMachineGun == false)
         {
             Shoot();
         }
 
         if (Input.GetKey("Fire1") && ShootEnable == true && ammoEmpty == false && isReloading == false && inventoryInput.open == false && isMachineGun == true)
         {
             Shoot();
         }
 
         //ammodisplay.text = ("Munition:") + currentAmmo.ToString();
         if (Input.GetKey(KeyCode.Mouse1))
         {
             isAiming = true;
         }
 
         else if (!Input.GetKey(KeyCode.Mouse1))
         {
             isAiming = false;
         }
     }
 
     private void FixedUpdate()
     {
         if (isAiming == true)
         {
             gunModel.transform.localPosition = Vector3.Lerp(gunModel.transform.localPosition, aimingPosition, Time.deltaTime * aimSpeed);
         }
         else if (isAiming == false)
         {
             gunModel.transform.localPosition = Vector3.Lerp(gunModel.transform.localPosition, normalPosition, Time.deltaTime * aimSpeed);
         }
     }
 
     public IEnumerator Reload()
     {
 
         audSource.PlayOneShot(reloadClip);
         isReloading = true;
 
         yield return new WaitForSeconds(reloadTime);
 
         int totalAmmo = currentAmmo + Ammo;
         if (totalAmmo <= maxAmmo)
         {
             currentAmmo = totalAmmo;
             Ammo = 0;
         }
         else
         {
             int shots = maxAmmo - currentAmmo;
             currentAmmo = 10;
             Ammo -= shots;
         }
 
 
         isReloading = false;
 
     }
 
     void Shoot()
     {
         audSource.PlayOneShot(gunShotClip);
         currentAmmo--;
 
         Vector3 gunModelLocalPosition = gunModel.transform.localPosition;
         gunModelLocalPosition.z = gunModelLocalPosition.z - recoilStrength;
         gunModel.transform.localPosition = gunModelLocalPosition;
 
         RaycastHit hit;
         if (Physics.Raycast(fpsCam.transform.position, fpsCam.transform.forward, out hit, range))
             {
             Debug.Log(hit.transform.name);
 
             Leben leben = hit.transform.GetComponent<Leben>();
             if (leben != null)
             {
                 leben.TakeDamage(damage);
             }
         }
     }
 }

here is my Pick up/drop script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class PickUp : MonoBehaviour
 
 {
     private Weapon weapon;
 
     public bool reloadSound;
 
     public float transformX = 0.15f;
     public float transformY = 0.15f;
     public float transformZ = 0.15f;
 
     public Weapon gunScript;
     public Rigidbody rb;
     public BoxCollider coll;
     public Transform player, gunContainer, fpsCam;
 
     public float pickUpRange;
     public float dropForwardForce, dropUpwardForce;
 
     private Inventory inventory;
 
 
     public bool equipped;
     public static bool slotFull;
 
     void Awake()
     {
         weapon = GameObject.FindObjectOfType<Weapon>();
     }
 
     private void Start()
     {
 
         if (!equipped)
         {
             gunScript.enabled = false;
             rb.isKinematic = false;
             coll.isTrigger = false;
         }
 
         if (equipped)
         {
             gunScript.enabled = true;
             coll.isTrigger = true;
             slotFull = true;
             rb.isKinematic = true;
             
         }
     }
 
     private void Update()
     {
         if (player == null)
         {
             player = transform.Find("/FirstPersonPlayer");
         }
 
         if (gunContainer == null)
         {
             gunContainer = transform.Find("/FirstPersonPlayer/MainCamera/GunContainer");
         }
 
         if (fpsCam == null)
         {
             fpsCam = transform.Find("/FirstPersonPlayer/MainCamera");
         }
 
         Vector3 distanceToPlayer = player.position - transform.position;
         if (!equipped && distanceToPlayer.magnitude <= pickUpRange && Input.GetKeyDown(KeyCode.E)) pickUp();
     
         
         if (equipped && Input.GetKeyDown(KeyCode.Q)) Drop();
 
 
     }
 
     public void pickUp()
     {
         reloadSound = true;
 
         equipped = true;
         slotFull = true;
 
         transform.SetParent(gunContainer);
         transform.localPosition = Vector3.zero;
         transform.localRotation = Quaternion.Euler(Vector3.zero);
         transform.localScale = new Vector3(transformX, transformY, transformZ);
 
         rb.isKinematic = true;
         coll.isTrigger = true;
 
         gunScript.enabled = true;
 
        // weapon.ammodisplay.gameObject.SetActive(true);
         
 
     }
 
     public void Drop()
     {
         reloadSound = false;
 
         equipped = false;
         slotFull = false;
 
         transform.SetParent(null);
 
         rb.isKinematic = false;
         coll.isTrigger = false;
 
         
         rb.AddForce(fpsCam.forward * dropForwardForce, ForceMode.Impulse);
         rb.AddForce(fpsCam.up * dropUpwardForce, ForceMode.Impulse);
 
         float random = Random.Range(-1f, 1f);
         rb.AddTorque(new Vector3(random, random, random)* 10);
 
         gunScript.enabled = false;
         //weapon.ammodisplay.gameObject.SetActive(false);
     }
 
 }