Glock .40, 3 pre-ban 15 round clips. If a gun fight breaks out, I might lose, but, I won't lose just because I lacked the ability to shoot back.
It usually stays in the truck, but I have carried it into houses that appeared to be inhabited by vagrants.
A safety tip - if you come to a closed yard gate and your not SURE the property is vacant...shake the gate. If there is a dog, he'll come running. Otherwise, you may be 10 feet inside the gate before you realize... oh nuts, and then your shaking hands with Fido.