terminal
LE
The fact that they had to resort to making improvised weapons suggests that whatever gun restrictions they do have in place are crimping the style of criminal gangs. If weapons were to easy to get on the black market or smuggle in they wouldn't be trying to make their own inferior ones. SMGs are probably the simplest of self-loading guns possible.I was reading a thread about gun control elsewhere and it was suggested that with increased restrictions US gangs will resort to making auto weapons as they do in Brazil. I actually don't agree but thought the situation in Brazil was super interesting, check out this stuff:
Brazil | Impro Guns
Taking this back to the subject of this thread, which is mass shootings by nutters, not many of the typical American nutter who goes on a shooting rampage are going to be capable of manufacturing their own guns from scratch beyond crude single shot examples.