The whole purpose of these 12(?) series of permits is as a cheap form of confiscation.
As the owners of 12(?) firearms die off, the guns will eventually be turn in and destroyed.
In another generation or two, there won't be anyone out there with a 12(?) permit, and all the guns covered in these permits will have been destroyed as no one is eligible to have them.
All the 12(?) firearms will have been destroyed (at least the one's not in the possession of criminals) and it will have cost the government almost nothing to do it except time.
And it was done with little of the outrage seen by other gun control efforts.
You got to hand it to the pricks, it was a smart idea.
Don't be surprised if the government doesn't do the same to all hand guns and other classes of firearms in the future.
That's providing TruDOPE doesn't get his way with this new bill.