US law makers have responded to recent mass shootings by voting to set a minimum age of 21 for buying semi-automatic weapons.
The United States House of Representatives vote was part of a wide-ranging gun control bill passed on Wednesday, which proposes raising the minimum age for purchasing a semi-automatic rifle and bans selling ammunition magazines that have a capacity of over 15 rounds.
The vote was passed by 223-204, while the section dealing with the minimum age for semi-automatic weapons went through 228-199.
