Weapon rotation, as main camera child

Hi,

I put my weapon (pistol) as a main camera child

-> Camera
----> Weapons (group)
------>Pistol

I tried to put a group between the weapons and the pistol.
But i have some odd effect when i move the player camera, the weapon seems to rotate a little too.

Here some images to show the effect

9203-img2.png

9204-img1.png

So here you can see that when i move the camera up and down i show a little more of the camera

Anyone can help me?