I'm having a little trouble visualizing this sucker since I've never seen one. I'll search for a pic on the web. I guess I also need to take my shotgun down and take a closer look at what is needed.
JNewell, if you want to post the dims or email them to me, that would be appreciated. If this tool is something I can fabricate with a hacksaw and a file, then I might try it. I have few other ways to cut metal other than my reciprocating saw (with a metal cutting blade) or a propane torch.
Gun control should just be about hitting your target.