Kodiac,
Ever read "The Boof of the .45"? I can't make any qoutes right now as Idon't have it with me, but I seem to recall the author saying he has never seen one in his life. From the design described and pictured there, I bet a gunsmith could make one.
Boy, they look unpleasant to shoot!
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I need more money to buy more guns and ammo.
http://www.angelfire.com/ny2/beefclub