as a former inmate of that sewer called NJ, my assumption is that they were refering to .50 cal rifles such as Barrret. NJ is the worst when it comes to anti-gun everything. and
afaik the situation worsens every year, and i cannot remember ever a progun law signed, by anyone dem or repub. the state is run by corruption put into office by bubble headed voters that forgot or unaware of their roots in history