Making Instantiated Weapon a Child of the Player

I have a script that's supposed to let the player walk over a gun on the ground and press e and it instantiates a clone of the gun and makes that clone a child of the player so it follows it around. Right now it instantiates the clon facing the right way and everything but it doesn't become a child of the player. Any ideas? Thanks!

here's the script:

 using UnityEngine;
 using System.Collections;
 
 
 public class Player : MonoBehaviour {
     public bool equip;
     public Vector3 playerPosition;
     public Quaternion playerRotation;
     public GameObject Weapon;
     public GameObject equipedWeapon;
     
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
     
     }
 
     void OnTriggerStay(Collider other){
         Weapon = other.gameObject;
                 
         if (other.gameObject.tag == "weapon"){
             if(Input.GetKeyUp("e")){
                 playerPosition = transform.position;
                 playerRotation = transform.rotation;
                 equipedWeapon = Instantiate(Weapon,playerPosition,playerRotation) as GameObject;
                 equipedWeapon.transform.parent = transform.parent;
                 equip = true;
                 other.gameObject.SendMessage("Equip", playerPosition);
                 
             }
         }
         
     }
 
 
 }