Front sights off or Barrell?

I bought a new Gamo gen2 magnum a couple of days ago and it kept hitting really left with all pellets I tried. 

I had to adjust the front sights ALL the way right to hit what I was aiming. What says you? 
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Alignment is off. Can you loosen back screw and move over a tiny amount? If you can’t perhaps ream out that back screw hole a tiny amount so it can move a tad to the side. Before doing something that drastic I would first check your front sight and also contact the manufacturer. Hopefully someone else has had this issue here and can be of more assistance



I’m assuming those are held down by the vertical knob and one Allen or Hex screw in the back