In need of a barrel for my 20 gauge Ithaca 37. I am looking for a choke barrel for bird/small game hunting, with a either interchangeable chokes or IC/modified choke.

Thanks.

https://ithacagunusa.com/product-cat...els-receivers/

Thank you sir for the link. Much appreciated.

In NY (home of the original Ithaca), extra barrels are pretty easy to come by. I would hit a couple of gun shows for easiest shopping.
You do need to be sure your gun will match up to the barrel. They are not quite one bbl fits all. You could probably bring your receiver/ action with you to the show to test. The used route would be MUCH cheaper than going through the new Ithaca entity.