I have a Benelli M3 with (I think) a 22" vent rib barrel with a bead site. I would prefer it have an 18" barrel with ghost ring sights (or something similar). I've had trouble finding a factory barrel that has what I want, so I'm considering the following:
Having the barrel cut to 18.5"
Having the rib removed
Having ghost ring sights installed
Having the cut down barrel tapped for choke tubes
Are all these doable by a competent gunsmith? and what would the cost be like? From what I've seen a factory barrel is around 400-500.