Vector3.forward, what's wrong?

Question

Unity

Hello dear. The question is this: there is a simple code that creates a bullet, the position of which is set next to the barrel, and the rotation is done like the player to whom the weapon is attached.

BulletInstance = Instantiate(bullet, gunOne.transform.position, player.transform.rotation);
        //BulletInstanceTwo = Instantiate(bullet, gunTwo.transform.position, player.transform.rotation);

         BulletInstance.GetComponent<Rigidbody>().AddForce(Vector3.forward * 1000);

Everything would seem simple, but the bullets fly only in one direction.
What could be wrong?