Welcome to GunLaws101!

We provide a comprehensive, non-partisan database of firearms laws and regulations across the United States including open carry laws, Castle Doctrine, stand your ground, assault weapons restrictions, and more.

The United States maps below display overviews of how each state's gun laws compare on common firearm-law questions. Choose your state for more details on applicable gun laws in your area, or learn more about general gun law topics on our United States gun laws FAQ.

For more details about how a particular gun law varies across the states, use the dropdown menu below to navigate to a state-by-state map and table comparing each law across the United States.