Bullets showing only on host and weapons not appearing

Hello Im making my first multiplayer game and so far i completed the basic fps tutorial for making it but now i added new bullet types and guns into the game but unfortunately they are only shown on the host's game or so i think because he can shoot and his bullets can be seen but when other player's shoot only ammo is wasted also guns do not appear when i switch them.I tried syncing most of the stuff between the host and the clients but im new to this stuff and if you could possibly explain i would be very happy.

This is my main code :

 using UnityEngine;
 using UnityEngine;
 using UnityEngine.Networking;
 using UnityEngine.UI;
 
 public class PlayerController : NetworkBehaviour
 {
     public Text Ammoleft;
     [SyncVar]
     public int Ak47Bullets = 30;
 
     [SyncVar]
     public int PipeShotgunBullets = 7;
 
     [SyncVar]
     public int currentWeapon;
 
     public Transform[] weapons;
 
     [SyncVar]
     public string CurrentWeaponstr;
 
     public GameObject ShottyBullet;
     public GameObject Ak47Bullet;
     public Transform bulletSpawn;
     public float speed = 1; // speed in meters per second
 
 
     void Update()
     {
         
         if (!isLocalPlayer)
         {
             return;
         }
 
         if(Input.GetKeyDown(KeyCode.Alpha1)) {
             changeWeapon(1);
             CurrentWeaponstr = "Ak47";
         }
         if(Input.GetKeyDown(KeyCode.Alpha2)) {
             changeWeapon(2);
             CurrentWeaponstr = "PipeShotgun";
         }
             
 
         float mouseInput = Input.GetAxis("Mouse X");
         Vector3 lookhere = new Vector3(0,mouseInput,0);
         transform.Rotate(lookhere);
 
         var x = Input.GetAxis("Horizontal") * Time.deltaTime * 3.0f;
         var z = Input.GetAxis("Vertical") * Time.deltaTime * 3.0f;
 
         transform.Translate(x, 0, 0);
         transform.Translate(0, 0, z);
 
         Vector3 moveDir = Vector3.zero;
         //moveDir.x = Input.GetAxis("Horizontal"); // get result of AD keys in X
         //moveDir.z = Input.GetAxis("Vertical"); // get result of WS keys in Z
         // move this object at frame rate independent speed:
         transform.position += moveDir * speed * Time.deltaTime;
 
         if (Input.GetKeyDown (KeyCode.Mouse0) && CurrentWeaponstr == "PipeShotgun" && PipeShotgunBullets > 0)
         {
             CmdFireShotty();
             PipeShotgunBullets -= 1;
             Ammoleft.text = "Left: " + PipeShotgunBullets;
             Debug.Log ("Shotpipe");
         }
         if (Input.GetKey (KeyCode.Mouse0) && CurrentWeaponstr == "Ak47" && Ak47Bullets > 0) {
             CmdFireAk47();
             Ak47Bullets -= 1;
             Ammoleft.text = "Left: " + Ak47Bullets;
             Debug.Log ("ShotAk");
         }
     }
 
     // This [Command] code is called on the Client …
     // … but it is run on the Server!
     [Command]
     void CmdFireAk47(){
         if (CurrentWeaponstr == "Ak47") {
             var Ak47bullet = (GameObject)Instantiate (
                 Ak47Bullet,
                 bulletSpawn.position,
                 bulletSpawn.rotation);
             Ak47bullet.GetComponent<Rigidbody>().velocity = Ak47bullet.transform.forward * 6;
             NetworkServer.Spawn(Ak47bullet);
         }
     }
     [Command]
     void CmdFireShotty()
     {
         
         // Create the Bullet from the Bullet Prefab
         if (CurrentWeaponstr == "PipeShotgun") {
             var Pipebullet = (GameObject)Instantiate (
                              ShottyBullet,
                              bulletSpawn.position,
                              bulletSpawn.rotation);
             Pipebullet.GetComponent<Rigidbody>().velocity = Pipebullet.transform.forward * 6;
             NetworkServer.Spawn(Pipebullet);
         }
 
         // Add velocity to the bullet
 
 
         // Spawn the bullet on the Clients
 
     }
 
     public override void OnStartLocalPlayer ()
     {
         GetComponent<MeshRenderer>().material.color = Color.blue;
     }
         
     public void changeWeapon(int num) {
 
         currentWeapon = num;
         for(int i = 0; i < weapons.Length; i++) {
             if (i == num) {
                 weapons [i].gameObject.SetActive (true);
             }
             else
                 weapons[i].gameObject.SetActive(false);            
         }
     }
 }