Hello, is the front sight able to be drifted to the side on a Bersa Thunder 380? I'm shooting way left and need to move the front as the rear just does not have enough movement. It looks like it is in a dove tail but did not want to try without knowing first. This is normal for me as I have to have prisms in my glasses and it throws the sights off. I needed to move my AR sight almost all the way right.