Well just go down to the store and buy yourself an AKM or an M-15 then. Or maybe a tarus .357 then to keep by your bed for when the thugs want to help you get rid of your excess possessions.
p.s we are citizens, not subjects.
And here I thought you referred to yourselves as subjects of the crown.
1—Obviously (and wrongly imo) there are restrictions on what I can buy. Assault rifles were banned in the UK in 1988 after the Hungerford mass killings by Michael Ryan the previous year. Some handguns (on the UK mainland) are restricted. But as a firearms licenced Brit, I can buy any rifle or shotgun I want. And some handguns.
2-Its a common mistake in both the UK and US that the British are subjects, because we have the Royals. British people have been citizens since 1948 and the Nationality Act.