Collins voted for the Manchin – Toomey bill to amend federal law to expand background checks for gun purchases . She did vote against a ban of high-capacity magazines over 10 bullets . She has received a C grade on gun rights from the NRA , and D - from Gun Owners of America . In 2018 , Collins was a cosponsor of the NICS Denial Notification Act , legislation developed in the aftermath of the Stoneman Douglas High School shooting that would require federal authorities to inform states within a day of a prohibited person attempting to buy a firearm failing the National Instant Criminal Background Check System . In February 2019 , Collins supported the Terrorist Firearms Prevention Act , legislation enabling the attorney general to deny the sale of a firearm to individuals on the no-fly list or selectee list that subject airline passengers to more screening
Stoneman Douglas High School shooting
Stoneman Douglas High School shooting
Susan Collins