I have long been thinking about the idea of having a carbine for the home defense role. While my wife has been shown how to use a pistol and has to (by a pact we made) attend annual retraining, she is at best - not likely to shoot herself with it. She is terrified of the 12GA that supplements the home defense plan, but can shoot a .22 rifle and an AR15 with amazing skill! Given the politics surrounding AR15s in Kalifornia, they are not the best option IMHO for a HD gun. I also have issues with the muzzle blast of a 223 indoors which has for now ruled out a Mini14. I've been looking for a Ruger PC9 carbine, but those things are silly impossible to find, expensive for what they are, and really are not that inspiring to me in hand. So that leaves me with the M1 Carbine. They are super light and handy, low recoiling, sturdy, and with soft point or hollow point ammo - have good terminal ballistics. They are however a little dated.
So with that, what is the general concensios on putting a "war baby" into the role of HD gun?
Should I go with a military gun, or are some of the after market guns like the Thompson/Kahr M1s good (I would consider tacticooling up a WWII M1 to be a sin)?
What kind of sighting options are available?
Anyone else use one for this role?