[Bigcat]

For me it's a 12 gauge short barrel shot gun, load it with 00 buck just point it, you will take out a whole wall and anything in front of it.
There is nothing more frightening the the sound of a the slide of a pump gun slamming shut.

I don't know about NY, but you could buy a gun and have the it delivered to your home as long as it never leaves your home your OK.
In MA your home is your castle, you can protect your life but not your property.
You will have to check that out just go into a gun shop they will be happy to help you out.