Making a gun sound when shooting (HELP)

Hello, I created this script so when you click it shoots the game object, I wanted it also to play a OneShotSound through a AudioClip public variable this is C# btw. But when I do this put the clip in the inspector it says I want an audiosource which I don't want because I want it to play through the script. Here is the script thanks!

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class FireBlaster : MonoBehaviour
5. {
6.     public GameObject blaster;
7.     private Transform myTransform;
8.     private Transform cameraHeadTransform;
9.     private Vector3 launchPosition = new Vector3();
10.     private float fireRate = 0.2f;
11.     private float nextFire = 0;
12.     public AudioClip gunSound;
13.    
14.     void Start ()
15.     {
16.         myTransform = transform;
17.  
18.         cameraHeadTransform = myTransform.FindChild ("CameraHead");
19.     }
20.  
21.     void Update ()
22.     {
23.         if(Input.GetButton("Fire Weapon")  Time.time > nextFire)
24.         {
25.             nextFire = Time.time + fireRate;
26.             launchPosition = cameraHeadTransform.TransformPoint(0, 0, 0.2f);
27.  
28.             Instantiate(blaster,launchPosition,Quaternion.Euler(cameraHeadTransform.eulerAngles.x + 90,
29.                                                                 myTransform.eulerAngles.y, 0));
30.             audio.PlayOneShot(gunSound);
31.         }
32.     }
33. }

 

Nevermind I fixed it thanks!