Won't fire when switching weapons?

So I am working on a game based off of the Space Shooter Tutorial game. Just implemented weapons floating in space that can be picked up and switched between using the 1, 2, and 3 keys. Currently trying to get it so I can only fire a weapon when the particular weapon has already been picked up and selected. I'm starting off with the first weapon, figured it was easier than trying to figure out all 3 at once. Here is my most recent player controller script.

 using UnityEngine;
 
 using System.Collections;
 using System.Collections.Generic;
 [System.Serializable]
 public class Boundary
 {
     public float xMin, xMax, zMin, zMax;
 }
 public class PlayerController : MonoBehaviour {
 
     public float speed;
     public Boundary boundary;
     public float tilt;
 
 
     public float secPerShot;
     private float nextFire;
     private int wepSel;
 
     public WeaponBase wepA;
     public WeaponBase wepB;
     public WeaponBase wepC;
 
     public GameObject shot;
     public Transform shotSpawn;
     private List<WeaponBase> weps;
 
     public bool wepUp1;
     public bool wepUp2;
     public bool wepUp3;
 
     void Awake ()
     {
     weps = new List<WeaponBase> ();
     
     weps.Add (wepA);
     weps.Add (wepB);
     weps.Add (wepC);
     
     foreach(WeaponBase w in weps)
         w.gameObject.SetActive(false);
     
         wepUp1 = false;
     }     
     
     void Update ()
     {    
         nextFire += Time.deltaTime;
 
         if (Input.GetKeyDown ("1") && wepUp1) {
             weps [0].gameObject.SetActive (true);
             weps [1].gameObject.SetActive (false);
             weps [2].gameObject.SetActive (false); 
                     FireSelect();           
         }
         if (Input.GetKeyDown ("2") && wepUp2) {
             weps [0].gameObject.SetActive (false);
             weps [1].gameObject.SetActive (true);
             weps [2].gameObject.SetActive (false);
         }
         if (Input.GetKeyDown ("3") && wepUp3) {
             weps [0].gameObject.SetActive (false);
             weps [1].gameObject.SetActive (false);
             weps [2].gameObject.SetActive (true);
         }
     }   
 
     void FixedUpdate () {
 
         float hor = Input.GetAxis ("Horizontal");
         float ver = Input.GetAxis ("Vertical");
         Vector3 vel = new Vector3 (hor, 0, ver);
         GetComponent<Rigidbody>().velocity = vel*speed;
 
         GetComponent<Rigidbody>().position = new Vector3 (
             Mathf.Clamp (GetComponent<Rigidbody>().position.x, boundary.xMin, boundary.xMax),
             0.0f,
             Mathf.Clamp (GetComponent<Rigidbody>().position.z, boundary.zMin, boundary.zMax)
         );
         GetComponent<Rigidbody>().rotation = Quaternion.Euler (0, 0, GetComponent<Rigidbody>().velocity.x * -tilt);
     }
 
     void OnTriggerEnter(Collider other)
     {
         if (other.gameObject.CompareTag("Weapon1"))
         {
             other.gameObject.SetActive(false);
             wepUp1 = true;
         }
         if (other.gameObject.CompareTag("Weapon2"))
         {
             other.gameObject.SetActive(false);
             wepUp2 = true;
         }
         if (other.gameObject.CompareTag("Weapon3"))
         {
             other.gameObject.SetActive(false);
             wepUp3 = true;
         } 
     }
 
     void FireSelect()
     {
         if (weps[0] == true && Input.GetButtonDown ("Jump"))
         {
             wepA.shoot();
         }
       }
 }
         
 

The shoot method being called in the FireSelect method is in a different weapon script that instantiates the shots. Let me know if there's anything else you think could help make this easier to figure out. I feel like im thinking the wrong way about something here. I appreciate any help than you all can give me!