I had one that was not centered. I can usually get a knife centered, but was not able to do so in the military. I stripped a couple of screws and sent it to the factory for screw/backspacer replacement. It is still not perfectly centered, but I don't mind.
If you want to try, you can gently loosen the handle screws, push the blade over to the opposite scale in the direction you want it to move. Push all the way to the scale. Retighten the screws while holding the blade in place. The blade may move back to center a little. Be careful and don't overtighten, the backspacer is easily stripped.