Or how about a L/W Compact Springfield Armory 1911 that's been tuned up:

An alloy frame Compact .45 Hot Rod. I don't what would scare the intruder the most. The noise, the fireball, or the incoming 230 grain balls of lead.

The very short barrels on these pistols has the unwanted drawback of increased muzzle lift and increased muzzle flash. It's a slight increase over the 5" barreled 1911's, but an increase nonetheless.

I can put more rounds downrange faster and more accurately with a longer barrel 45 than I can the compacts. But you cant beat their size for discreet carry.