HARTFORD (AP) — Connecticut Gov. Dannel P. Malloy has proposed a statewide ban on bump stocks, the devices designed to make semi-automatic rifles mimic the firing action of fully automatic weapons.

The Democratic governor announced the legislation Tuesday, citing the October mass shooting in Las Vegas in which the shooter used a bump stock to kill 58 people and injure hundreds more.

Possession and sale of bump stocks and other rate-of-fire enhancers would be felonies carrying up to five years in prison.

Gun rights supporters say it's not clear whether Malloy's proposal would be effective, because there are many ways to make guns fire faster.

Connecticut would join Massachusetts, California and the city of Columbia, S.C., in banning bump stocks. Federal officials also are considering regulating or banning the devices.