No such thing as "illegal firearms" so long as the second amendment exists.
Amendment II
A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.
What part of "the people" and "shall not" is unclear here?
It's the UK, where the common people are "subjects" instead of citizens.
I'm afraid that's not quite true. Saw a shotgun barrel off to 14 inches, spread the news around, and you'll see what I mean.
The part that says this occurred in England.
OOPS, my bad - this was in Wales, not "England".
There is no such thing in the UK where all this rot took place.
Although there is, or was, this:
An Act Declaring the Rights and Liberties of the Subject and Settling the Succession of the Crown
Whereas the Lords Spiritual and Temporal and Commons assembled at Westminster, lawfully, fully and freely representing all the estates of the people of this realm, did upon the thirteenth day of February in the year of our Lord one thousand six hundred eighty-eight [old style date] present unto their Majesties, then called and known by the names and style of William and Mary, prince and princess of Orange, being present in their proper persons, a certain declaration in writing made by the said Lords and Commons in the words following, viz.:
...
That the subjects which are Protestants may have arms for their defence suitable to their conditions and as allowed by law;
I think the "which are Protestants" was removed, or at least ignored after some time.
But it has all long ago been discarded, although never formally repealed. Of course at first they weaseled around it, and framed the restrictions in terms of not allowing folks arms so that they could not poach the Kings game. Then, just after WW-I, they pretty much abandoned all pretense and started banning guns by type. The NRA had to send them weapons for their Home Guard, to be used against German invaders. Those guns were confiscated after the war, and not returned to those Americans who had loaned them to the Home Guard.