Removes the federal 21-year minimum age to buy a handgun from a licensed firearms dealer and aligns it with the general federal minimum age of 18. Licensed dealers would be allowed to sell handguns to 18- to 20-year-olds who are not otherwise prohibited and who pass required background checks.

It updates two provisions of federal gun law to reflect this change. All other federal rules—like background checks and bans for prohibited persons—still apply, and state age limits or other state laws are not changed by this measure.