The DFL-led Minnesota Senate approved a measure legalizing gun silencers Thursday night, risking a showdown with Democratic Gov. Mark Dayton who just hours before sent legislators a letter threatening to veto the provision.
"Nowhere in the Second Amendment to the United States Constitution does it refer to the right to bear a silencer," Dayton wrote in the letter. "To allow gunshots to be silenced increases the danger to law enforcement officers, and to innocent bystanders."
Along with the silencer provision, the Senate approved a package of gun rights measures that match similar legislation that passed the House last week.
The silencer issue, which passed 40-23 with bipartisan support, is one that threatens to further divide the Senate and the governor, who issued his first written veto threat of the session over the matter. Already, more than 35 states permit gun silencers and others are considering it.
Gun rights advocates say silencers, also known as suppressors, reduce hearing problems related to loud gunfire and have unfairly gained a bad reputation from Hollywood movies that portray them as ideal tools for stealthy crimes.
Advocates say the devices do not silence but merely reduce gun noise by about 30 decibels; even the smallest firearms create noise of at least 140 decibels, according the American Speech-Language-Hearing Association.
Opponents of the silencers say the sound of gunfire assists police responding to calls and serves as a warning system for residents. They say gun owners worried about hearing loss should wear earplugs instead.
The veto threat came on a day when the Senate took up a range of criminal justice issues.