[the scotsman]

Concealed carry is legal in NI, but not in England, Wales and Scotland except in some circumstances requiring a permit.

[thefactor]

There are approx 1.8 million people in NI. There are approx 10,000 personal carry permits for handguns. That's about 180 people carrying out of every 10,000 people.

Source:

http://www.parliament.the-stationery-office.co.uk/pa/cm200203/cmselect/cmniaf/67/2102911.htm