How to enable GamePbject in the code

I have a GameObject, whch I disabled by hand (ticked off at the top of the Inspector).
Now I want to enable it in the code:

GameObject.Find("GunInHand") = enabled;

But it doesn’t works. How to make it correct?

Look at the GameObject documentation.

// In C#
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Example() {
        GameObject go = GameObject.Find("GunInHand");
        // Or
        GameObject go = GameObject.Find<GunInHand>();
        // Or

// In Javascript it is the same procedure
// Activates the game object.
	gameObject.SetActive (true);