Handguns are not legally available to civilians in the UK, rifles are limited to bolt action, shotguns to 3 round magazine at max, and there’s few places to practice.
I know Americans all want to be Rambo, but the solution is community led direct action like the group features here are doing.
Flats above shops are usually cheap, people who live in them often don’t have a lot of choices in where they live.
In the UK it’s not unusual for people to live in small apartments above shops like that, and in a terrace fire can spread very quickly.
Fire doesn’t obey orders and isn’t selective of it’s path, and stepping from property damage into intentionally risking the lives of innocent people is a very dark path to follow.
Take up shooting instead.
Not sure about sounding, but yes the L flag is the coolest <3