try using a strap wrench, if that doesn't work you could try emptying the tank so that ther is no pressure on the tank's threads and then pulling it out
Your comment was literally about as logical as "Clouds do not exist because Ronald McDonald has a fish sandwich".
"Originally posted by Iron__Man: dude, lose the 22 inch barrel. i wouldnt even tell people you owned it. personally it sounds like a case of overcompensation to me."