So the H&R 20 ga that i bought is a standard full choke with no threads for adding a different choke....Anyone have any ideas of how I can choke this thing without being to expensive?.....I was either thinking of tapping it to a common choke threading, not sure what else is out there.....For what it is, it is not worth sinking a bunch of $$$ into, but thought someone may have done this in the past...