Did the assault weapons ban work? Yes.
Did the assault weapons ban reduce criminal use of assault weapons?
After the 1994 assault weapons ban was enacted:
- According to a 2004 University of Pennsylvania study, the ban cut the criminal use of assault weapons by 70% 9 years after the ban took effort.
- Mass shootings dropped by more than a third.
When the ban expired:
- Mass shootings nearly doubled.
- Deaths shot up by 239%.
Did banning high-capacity magazines reduce mass shootings?
States that banned high capacity magazines had half the mass-shootings of states that didn’t.
From 1990-2017, states that didn’t ban large capacity magazines:
- Had more than double the number of mass shootings.
- Had 3x more deaths from mass shootings each year.
National Library of Medicine, National Center for Biotechnology Information, PubMed.gov: Changes in US mass shooting deaths associated with the 1994-2004 federal assault weapons ban: Analysis of open-source data
Journal of Urban Health: Criminal Use of Assault Weapons and High-Capacity Semiautomatic Firearms: an Updated Examination of Local and National Sources
University of Pennsylvania: An Updated Assessment of the Federal Assault
Weapons Ban: Impacts on Gun Markets and
Gun Violence, 1994-2003
American Journal of Public Health: The Effect of Large-Capacity Magazine Bans on High-Fatality Mass Shootings, 1990–2017


