Here is an article describing their intent:
https://www.wtae.com/article/new-com...burgh/25585940
Here is a link to the bill the idiots on the city council appear ready to pass:
http://apps.pittsburghpa.gov/redtail...rm_Conduct.pdf
In addition to prohibiting so-called "assault weapons" and "large capacity magazines" (anything over 10 rounds), it also appears that it may prohibit concealed carry even with a concealed handgun license. The exceptions are listed as 18 P.S. 610(b)(1-10), which as best as I can determine, does not exist. Unless and until the language is corrected to reflect a statute that actually exists, we will not have any idea what the council intends to exempt.
All of this is of course a very clear violation of the state pre-emption statute, which is here:
https://www.legis.state.pa.us/cfdocs...n=20&subsctn=0
Although there is little doubt that if this actually becomes a city ordinance, anyone found in violation of this ordinance for something that is otherwise legal under state law could successfully challenge it. However, that does mean being arrested and paying a lawyer. While the vast majority of the judges I have met and argued before are reasonable people who will follow the law, any time a third party decision maker is involved, there is risk that things will not go as they should.
This should be taken into account if, for example, one is pulled over in Pittsburgh and would normally provide his concealed handgun license to the police officer or otherwise inform them of the firearm.