Machine guns were expensive in the early 20th century. Stealing them was cheaper.
Bonnie and clyde.
Got their BARs from another criminal who stole them from a national guard armory in 1932.
https://www.themeateater.com/hunt/firearm-hunting/the-infamous-guns-of-bonnie-and-clyde
Machine gun Kelley a felon, got his Tommy gun via straw purchase.
https://www.biography.com/crime/machine-gun-kelly
The dillinger gang "plundered the police arsenals at Auburn, Indiana and Peru, Indiana, stealing several machine guns"
https://www.fbi.gov/history/famous-cases/john-dillinger#The-Bureau Actively Joins the Hunt
Baby face nelson.
Stole Tommy guns around 1932 from an armory.
Had a full auto, custom 1911 in 38super, made by an underground gunsmith, I believe this was post 1934.
https://www.gunsamerica.com/digest/...lester-gillis-and-his-lebman-baby-machinegun/
"common ways for mobsters to obtain
firearms used in hits was by stealing them"
https://themobmuseum.org/blog/leave-the-gun-did-mobsters-seriously-do-that/
It appears theft was the preferred method of obtaining any kind of gun.
How did the police comish know there were 500 MGs owned by the gangs, did the police call and ask them, did the snitches tell them that, did they call around to distributors asking if anyone was buying dozens of machine guns in and around the Chicago area, were these 500 MGs previously owned by oh say the government?
That sounds like fear mongering.
To me that sounds more like a gang problem than a gun problem.
So how many are like MG Kelly and "just bought them"?
Even though that's an over simplified version of how he got his MG.
It's almost like criminals don't care about the law.
The government allowed criminals to get machine guns, a large portion through theft from the government until things got so bad they could drop an extreme ban criminalizing just having one and no one would challenge it.
Why not make it an automatic 10 years in the pen and $250,000 fine for any violent that crime that involved a machine gun, automatic death by firing squad if you used a machine gun to murder someone or ordered that murder?
Instead of punishing everyone for just having one.