A concealed carry permit holder helped Massachusetts State Police halt a gunman's brazen shooting rampage, the Cambridge Police Department said in a release.
The United States Postal Service (USPS) closed comments on a new rule that would allow law-abiding citizens to mail firearms, reversing a 99-year-old ban.
The Department of Justice filed suit against Colorado, accusing it of violating the Second Amendment rights of its citizens by banning commonly-used magazines.
Democratic Virginia Sens. Tim Kaine and Mark Warner announced legislation targeting gun owners, including a ban on modern semiautos and a "red flag" law.
Pro-Second Amendment groups declared they would fight a bill in Rhode Island that would give owners of modern semiautomatic firearms six months to turn them in.