Any competent gunsmith can fix that for you.. depending on how bad it's off even just bedding the ramp and shimming it can give satisfactory results.I have a Williams FP and did not require a new front sight. The problem I have is my front sight is canted a few degrees which makes the fp canted if I align it up level. When I adjust for example, 1 click windage also requires 1 click elevation to make up. Makes for really awkward and frustrating adjustments.