Dang! if you want to save money, just buy the 20". if you buy that and have a gunsmith cut and re-install the bead, you will spend more money than buying a cheap 18.5" barrel and the choke may not be uniform... the shot pattern, which is no biggie for a close-defense shotgun, but could give you a pattern that will have large holes in it and miss game.
JMHO
Wynn
USAF Retired '88, NRA Life Member. Wife USAF Retired '96
Avatar: Wynn re-enlists his wife Desiree, circa 1988 Loring AFB, ME. 42nd BMW, Heavy (SAC) B-52G's
Frédéric Bastiat’s essay, The Law: http://mises.org/books/thelaw.pdf
Thomas Jefferson said
“A government big enough to give you everything you want, is strong enough to take everything you have.”
and
"Peace is that brief glorious moment in history when everybody stands around reloading".