Let me know what you have. This gun takes the Mobil threads. Would like to try a jelly head or jebs but will look at all. Please pm me! Thanks.
I don't have anything for sale but I shoot a Carson 575 out of mine. They are fairly cheap on Ebay. It shoots better out of my M1 than the Indian Creek choke. I am shooting tss #9 that I load myself.
I've got a jebs .575 ported been shot only twice. I've got an indian creek .555 that's been shot no more than 10 times.