Bill > HR4676

This bill, called the "Modern Firearm Safety Act," aims to prevent states and local governments from imposing additional design requirements on handguns that are not mandated by federal law. The bill finds that such local requirements limit citizens' firearm choices, artificially increase prices, potentially compromise firearm safety, violate the Second Amendment, and interfere with interstate commerce. Specifically, the bill prohibits any government entity from requiring handguns to have additional features not required by federal statute, such as loaded chamber indicators, magazine safety mechanisms, microstamping technology (which would imprint identifying information on bullet casings), or other technologies designed to add extra safety or tracking features. The legislation seeks to preempt local regulations that add extra design constraints beyond federal standards, with the goal of protecting consumers' ability to purchase standard firearms and preserving what the bill's authors view as citizens' constitutional rights to firearm ownership.

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https://www.congress.gov/bill/119th-congress/house-bill/4676/all-info