Missouri senators passed a bill that would ultimately make it a crime for federal officials to enforce laws restricting 2nd Amendment rights.

During Senate General Laws Committee hearing, senators discussed how the bill would lower the age for a concealed carry permit from 21 to 19.

Opponents worry that lowering the age could be dangerous.

“There are indeed states that have younger concealed carry permit ages,” said Sen. Brian Nieves, R-Washington. “What we don’t know yet is whether or not it has made a difference.”

Nieves says they will do further research to show whether the lower concealed carry age has had an impact on crime rates in other states.

A similar bill was vetoed by Gov. Jay Nixon last year.