That's why when my rent deposit comes back I'm buying me one of these.
Smith and Wesson M&P 15-22. Scaled down version of the 223, but with .22 ammunition. Semi-auto with a 30 round clip(10 by california law, but fuck the law) and it's legal in california with no special permit. Just have to be 18 with no felonies.
That being said, this is the new scenario. Look out the widow to see 6 "brothers" trying to break into a car. Grab the 22 and walk to the door. Open the door and stand on front porch with 22 in-hand. "What the fuck are you guys doing?!" What's gonna happen, they're going to either confront you(not a good idea) or take off. If they confront you tell them what's up and if they brandish a weapon, unload. No need for the cops to be called and anyone with half a brain will not try to escalate the situation when you're hold a military style rifle or even a handgun for that matter.
I don't care if you rent or not, that's your HOME, correct? Make sure bad things don't happen where you can see them out your window. You would want someone to do the same for you, right?
Remember, anyone can buy one of these bad boys for $499.00 plus tax. about 550 out the door and they're even at big 5. Arm yourselves RIU, the revolution is coming. stay strong