I recently inherited an older M1, H and K. Which has a stuck choke tube, after I could not release I had the local Gunsmith try and he deemed it stuck. My question is what now? Do I try all of the ideas posted on prior threads myself? have the 26" barrel cut to a shorter barrel and rethreaded? or does anyone have a contact for a really good gunsmith, machine shop that will grind it out. I love the gun and it has a lot of personal value to me, I just don't want to make the problem worse by doing anything myself since the local Gunsmith has already thrown in the towel. All Advice would be great.