Good advice from the posts above. Joel Etchen Guns stocks left handed O/U shotguns from Beretta and Browning, possibly others as well.
As others mentioned, Cole gun has left stocks that have already been cut and blanks that require fitting/carving the stock. As you can imagine the latter gets more expensive.
Cole gun can also do the hot oil bending, but keep in mind they can only bend the cast at the heel. The toe typically has even more cast than the heel and this cannot be bent into a true left hand configuration. This is a subtle difference. There is also concern if the hot oil bending is permanent or may slowly go back to the original dimensions.
I’ve done all the above, and I’m lucky that the left hand Beretta stock with less drop fit me well. Cole gun or Joel Etchen Guns do a good job helping lefty’s
