Unfortunately for the residents of the District, they're not allowed to own guns anymore.
IIRC, they can have handguns if they were registered before 1976. They can have long guns, but they're supposed to be unloaded, secured or disassembled. Really, quite useless, unless you want to try a butt-stroke.
Yes you are right,We in P.A still can and do,I have 35 in all.