cj2112

this is exactly what you want, you also want it to be a pump action 12 ga. (the remington 870 is a pump action gun) and have a short (18-22inches) barrel. This is not going to be an enjoyable gun to shoot, and is going to be more or less useless as a hunting gun. Now for ammo....Some people are going to tell you to load it with double ought buck shot. Don't do this, it's expensive, and truthfully, it's just not necessary, at the short range you are likely to encounter in a home defense situation, I'd recommend a nothing larger than #4 shot, and myself i'd choose a #6 shot (the larger the number the smaller the BB's). Even a target load is going to accomplish your goal in a home defense situation.