Of course, gun control advocates ignore the fact that if you DO have access to a machine shop, producing full auto STEN guns from scratch wouldn't be all that difficult. Guns aren't exactly cutting edge technology, and its easier to produce a full auto STEN than almost any other type of gun.
I'll take an accurate rifle any day, but my point is that such clever and industrious criminals could simply start producing guns despite any ban, if they were so inclined.
I've pointed out the same to gun grabbers before and found that informing them that they can never get rid of guns tend to irritate them to the extreme.
Palestinian children make (semi) working guns with a piece of pipe a spring and a piece of metal rod.
Or the M3 grease gun... I favor long shot accuracy myself but that is a different subject.
STEN guns?
hmmm, then only outlaws will have beds.
(STEN guns were made from same spring as beds during WWII?)
I wouldn't hire a journeyman plumber who couldn't make a Sten subgun out of the pipes and fittings he carries on his truck.