Beardy...
"An aircraft is no place for a shoot out, it is no place for a firearm."
You're forgetting what my friends Vince Saracini, Jason Dahl, and Leroy Homer found out the hard way.
Some people will take your airplane and fly it thru a building to further their own cause.
Try to remember in this thread why the subject of arming pilots came up. It was a non issue prior to 9/11.......
R.I.P., Vince.