Character.cs

using UnityEngine;

public class Character : MonoBehaviour
{
	[SerializeField]
	private Transform rightHand;

	private GameObject currentWeapon;

	public void EquipWeapon(GameObject weaponPrefab)
	{
		if (currentWeapon != null)
			Destroy(currentWeapon);
		currentWeapon = Instantiate(weaponPrefab, rightHand);
	}
}